diff --git a/.github/workflows/auto-assign.yml b/.github/workflows/auto-assign.yml
new file mode 100644
index 00000000000..673bebd4ecc
--- /dev/null
+++ b/.github/workflows/auto-assign.yml
@@ -0,0 +1,17 @@
+name: "Auto Assign PR"
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - reopened
+      - synchronize
+
+jobs:
+  add_assignees:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions-ecosystem/action-add-assignees@v1
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          assignees: ${{ github.actor }}
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 31e78f82a62..f5cb71bfc14 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -1,4 +1,5 @@
 name: "Pull Request Labeler"
+
 on:
 - pull_request_target
 
diff --git a/cpp/benchmarks/io/cuio_common.cpp b/cpp/benchmarks/io/cuio_common.cpp
index fe24fb58728..45b46005c47 100644
--- a/cpp/benchmarks/io/cuio_common.cpp
+++ b/cpp/benchmarks/io/cuio_common.cpp
@@ -186,7 +186,7 @@ std::string exec_cmd(std::string_view cmd)
   std::fflush(nullptr);
   // Switch stderr and stdout to only capture stderr
   auto const redirected_cmd = std::string{"( "}.append(cmd).append(" 3>&2 2>&1 1>&3) 2>/dev/null");
-  std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(redirected_cmd.c_str(), "r"), pclose);
+  std::unique_ptr<FILE, int (*)(FILE*)> pipe(popen(redirected_cmd.c_str(), "r"), pclose);
   CUDF_EXPECTS(pipe != nullptr, "popen() failed");
 
   std::array<char, 128> buffer;
diff --git a/cpp/include/cudf/ast/detail/expression_parser.hpp b/cpp/include/cudf/ast/detail/expression_parser.hpp
index 1d27bcbe6b5..b5973d0ace9 100644
--- a/cpp/include/cudf/ast/detail/expression_parser.hpp
+++ b/cpp/include/cudf/ast/detail/expression_parser.hpp
@@ -17,7 +17,6 @@
 
 #include <cudf/ast/detail/operators.hpp>
 #include <cudf/ast/expressions.hpp>
-#include <cudf/scalar/scalar_device_view.cuh>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/memory_resource.hpp>
diff --git a/cpp/include/cudf/column/column_factories.hpp b/cpp/include/cudf/column/column_factories.hpp
index 6bbe32de134..e72661ce49a 100644
--- a/cpp/include/cudf/column/column_factories.hpp
+++ b/cpp/include/cudf/column/column_factories.hpp
@@ -24,8 +24,6 @@
 
 #include <rmm/cuda_stream_view.hpp>
 
-#include <thrust/pair.h>
-
 namespace CUDF_EXPORT cudf {
 /**
  * @addtogroup column_factories
diff --git a/cpp/include/cudf/column/column_view.hpp b/cpp/include/cudf/column/column_view.hpp
index 48f89b8be25..6db5c8b3c7b 100644
--- a/cpp/include/cudf/column/column_view.hpp
+++ b/cpp/include/cudf/column/column_view.hpp
@@ -16,7 +16,6 @@
 #pragma once
 
 #include <cudf/types.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/prefetch.hpp>
 #include <cudf/utilities/span.hpp>
diff --git a/cpp/include/cudf/detail/aggregation/result_cache.hpp b/cpp/include/cudf/detail/aggregation/result_cache.hpp
index ec5a511bb7c..486808ebe18 100644
--- a/cpp/include/cudf/detail/aggregation/result_cache.hpp
+++ b/cpp/include/cudf/detail/aggregation/result_cache.hpp
@@ -19,7 +19,6 @@
 #include <cudf/column/column.hpp>
 #include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/hashing/detail/hashing.hpp>
-#include <cudf/types.hpp>
 
 #include <unordered_map>
 
diff --git a/cpp/include/cudf/detail/is_element_valid.hpp b/cpp/include/cudf/detail/is_element_valid.hpp
index 4b74d12f306..26b1bec2ced 100644
--- a/cpp/include/cudf/detail/is_element_valid.hpp
+++ b/cpp/include/cudf/detail/is_element_valid.hpp
@@ -17,7 +17,6 @@
 #pragma once
 
 #include <cudf/column/column_view.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/export.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
diff --git a/cpp/include/cudf/dictionary/dictionary_column_view.hpp b/cpp/include/cudf/dictionary/dictionary_column_view.hpp
index 5596f78a90b..0a799f27d00 100644
--- a/cpp/include/cudf/dictionary/dictionary_column_view.hpp
+++ b/cpp/include/cudf/dictionary/dictionary_column_view.hpp
@@ -15,7 +15,6 @@
  */
 #pragma once
 
-#include <cudf/column/column.hpp>
 #include <cudf/column/column_view.hpp>
 
 /**
diff --git a/cpp/include/cudf/io/text/detail/bgzip_utils.hpp b/cpp/include/cudf/io/text/detail/bgzip_utils.hpp
index 11eb4518210..5659f86b0c4 100644
--- a/cpp/include/cudf/io/text/detail/bgzip_utils.hpp
+++ b/cpp/include/cudf/io/text/detail/bgzip_utils.hpp
@@ -16,16 +16,10 @@
 
 #pragma once
 
-#include <cudf/utilities/error.hpp>
 #include <cudf/utilities/export.hpp>
 #include <cudf/utilities/span.hpp>
 
-#include <zlib.h>
-
-#include <algorithm>
-#include <array>
 #include <fstream>
-#include <limits>
 
 namespace CUDF_EXPORT cudf {
 namespace io::text::detail::bgzip {
diff --git a/cpp/include/cudf/utilities/default_stream.hpp b/cpp/include/cudf/utilities/default_stream.hpp
index 97a42243250..3e740b81cc9 100644
--- a/cpp/include/cudf/utilities/default_stream.hpp
+++ b/cpp/include/cudf/utilities/default_stream.hpp
@@ -16,10 +16,8 @@
 
 #pragma once
 
-#include <cudf/detail/utilities/default_stream.hpp>
 #include <cudf/utilities/export.hpp>
 
-#include <rmm/cuda_stream.hpp>
 #include <rmm/cuda_stream_view.hpp>
 
 namespace CUDF_EXPORT cudf {
diff --git a/cpp/include/cudf/utilities/traits.hpp b/cpp/include/cudf/utilities/traits.hpp
index 3f37ae02151..cf8413b597f 100644
--- a/cpp/include/cudf/utilities/traits.hpp
+++ b/cpp/include/cudf/utilities/traits.hpp
@@ -22,8 +22,6 @@
 #include <cudf/wrappers/durations.hpp>
 #include <cudf/wrappers/timestamps.hpp>
 
-#include <cuda/std/type_traits>
-
 namespace CUDF_EXPORT cudf {
 
 /**
diff --git a/cpp/include/cudf/utilities/type_dispatcher.hpp b/cpp/include/cudf/utilities/type_dispatcher.hpp
index 15b5f921c1b..6351a84e38f 100644
--- a/cpp/include/cudf/utilities/type_dispatcher.hpp
+++ b/cpp/include/cudf/utilities/type_dispatcher.hpp
@@ -16,7 +16,6 @@
 
 #pragma once
 
-#include <cudf/detail/utilities/assert.cuh>
 #include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
diff --git a/cpp/src/ast/expression_parser.cpp b/cpp/src/ast/expression_parser.cpp
index 1739670d81c..d0e4c59ca54 100644
--- a/cpp/src/ast/expression_parser.cpp
+++ b/cpp/src/ast/expression_parser.cpp
@@ -16,9 +16,6 @@
 #include <cudf/ast/detail/expression_parser.hpp>
 #include <cudf/ast/detail/operators.hpp>
 #include <cudf/ast/expressions.hpp>
-#include <cudf/scalar/scalar.hpp>
-#include <cudf/scalar/scalar_device_view.cuh>
-#include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/traits.hpp>
diff --git a/cpp/src/ast/expressions.cpp b/cpp/src/ast/expressions.cpp
index 3af4211912b..b7e4e4609cb 100644
--- a/cpp/src/ast/expressions.cpp
+++ b/cpp/src/ast/expressions.cpp
@@ -17,9 +17,6 @@
 #include <cudf/ast/detail/expression_transformer.hpp>
 #include <cudf/ast/detail/operators.hpp>
 #include <cudf/ast/expressions.hpp>
-#include <cudf/scalar/scalar.hpp>
-#include <cudf/scalar/scalar_device_view.cuh>
-#include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
 
diff --git a/cpp/src/binaryop/binaryop.cpp b/cpp/src/binaryop/binaryop.cpp
index a6c878efbbc..1b23ea12a5e 100644
--- a/cpp/src/binaryop/binaryop.cpp
+++ b/cpp/src/binaryop/binaryop.cpp
@@ -27,15 +27,10 @@
 #include <cudf/detail/binaryop.hpp>
 #include <cudf/detail/null_mask.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
-#include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/scalar/scalar.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
-#include <cudf/unary.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/traits.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
diff --git a/cpp/src/column/column_factories.cpp b/cpp/src/column/column_factories.cpp
index 482413d0ccb..972f97e8668 100644
--- a/cpp/src/column/column_factories.cpp
+++ b/cpp/src/column/column_factories.cpp
@@ -15,19 +15,13 @@
  */
 
 #include <cudf/column/column_factories.hpp>
-#include <cudf/detail/fill.hpp>
 #include <cudf/detail/null_mask.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
 #include <cudf/dictionary/dictionary_factories.hpp>
-#include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
-#include <cudf/strings/detail/fill.hpp>
 #include <cudf/utilities/error.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/traits.hpp>
 
-#include <thrust/iterator/constant_iterator.h>
-
 namespace cudf {
 namespace {
 struct size_of_helper {
diff --git a/cpp/src/column/column_view.cpp b/cpp/src/column/column_view.cpp
index 386c5ebe478..e831aa9645d 100644
--- a/cpp/src/column/column_view.cpp
+++ b/cpp/src/column/column_view.cpp
@@ -15,7 +15,6 @@
  */
 
 #include <cudf/column/column_view.hpp>
-#include <cudf/detail/get_value.cuh>
 #include <cudf/detail/null_mask.hpp>
 #include <cudf/hashing/detail/hashing.hpp>
 #include <cudf/strings/strings_column_view.hpp>
@@ -27,9 +26,7 @@
 #include <thrust/iterator/transform_iterator.h>
 
 #include <algorithm>
-#include <exception>
 #include <numeric>
-#include <string>
 #include <vector>
 
 namespace cudf {
diff --git a/cpp/src/copying/copy.cpp b/cpp/src/copying/copy.cpp
index d60fb5ce110..5e2065ba844 100644
--- a/cpp/src/copying/copy.cpp
+++ b/cpp/src/copying/copy.cpp
@@ -20,16 +20,11 @@
 #include <cudf/detail/copy.hpp>
 #include <cudf/detail/null_mask.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
-#include <cudf/lists/lists_column_view.hpp>
 #include <cudf/table/table.hpp>
-#include <cudf/utilities/default_stream.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/traits.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
 
-#include <thrust/iterator/transform_iterator.h>
-
 #include <algorithm>
 
 namespace cudf {
diff --git a/cpp/src/copying/pack.cpp b/cpp/src/copying/pack.cpp
index 1282eec6c44..a001807c82b 100644
--- a/cpp/src/copying/pack.cpp
+++ b/cpp/src/copying/pack.cpp
@@ -18,7 +18,6 @@
 #include <cudf/detail/contiguous_split.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
 #include <cudf/utilities/default_stream.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
 
diff --git a/cpp/src/copying/split.cpp b/cpp/src/copying/split.cpp
index 832a72ed5b0..116e3516460 100644
--- a/cpp/src/copying/split.cpp
+++ b/cpp/src/copying/split.cpp
@@ -14,10 +14,8 @@
  * limitations under the License.
  */
 
-#include <cudf/column/column.hpp>
 #include <cudf/detail/copy.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
diff --git a/cpp/src/datetime/timezone.cpp b/cpp/src/datetime/timezone.cpp
index 2196ee97fee..f786624680c 100644
--- a/cpp/src/datetime/timezone.cpp
+++ b/cpp/src/datetime/timezone.cpp
@@ -13,12 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#include <cudf/column/column_factories.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
 #include <cudf/detail/timezone.hpp>
 #include <cudf/detail/utilities/vector_factories.hpp>
 #include <cudf/table/table.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 #include <algorithm>
 #include <filesystem>
diff --git a/cpp/src/groupby/hash/flatten_single_pass_aggs.hpp b/cpp/src/groupby/hash/flatten_single_pass_aggs.hpp
index 2bf983e5e90..dfad51f27d4 100644
--- a/cpp/src/groupby/hash/flatten_single_pass_aggs.hpp
+++ b/cpp/src/groupby/hash/flatten_single_pass_aggs.hpp
@@ -17,7 +17,6 @@
 
 #include <cudf/aggregation.hpp>
 #include <cudf/groupby.hpp>
-#include <cudf/types.hpp>
 #include <cudf/utilities/span.hpp>
 
 #include <memory>
diff --git a/cpp/src/groupby/sort/aggregate.cpp b/cpp/src/groupby/sort/aggregate.cpp
index a9085a1f1fd..3041e261945 100644
--- a/cpp/src/groupby/sort/aggregate.cpp
+++ b/cpp/src/groupby/sort/aggregate.cpp
@@ -26,7 +26,6 @@
 #include <cudf/detail/binaryop.hpp>
 #include <cudf/detail/gather.hpp>
 #include <cudf/detail/groupby/sort_helper.hpp>
-#include <cudf/detail/null_mask.hpp>
 #include <cudf/detail/tdigest/tdigest.hpp>
 #include <cudf/detail/unary.hpp>
 #include <cudf/dictionary/dictionary_column_view.hpp>
diff --git a/cpp/src/interop/arrow_utilities.cpp b/cpp/src/interop/arrow_utilities.cpp
index a99262fb3bf..c69ebe12d2c 100644
--- a/cpp/src/interop/arrow_utilities.cpp
+++ b/cpp/src/interop/arrow_utilities.cpp
@@ -20,11 +20,6 @@
 #include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
 
-#include <rmm/exec_policy.hpp>
-
-#include <thrust/for_each.h>
-#include <thrust/iterator/counting_iterator.h>
-
 #include <nanoarrow/nanoarrow.h>
 
 namespace cudf {
diff --git a/cpp/src/interop/arrow_utilities.hpp b/cpp/src/interop/arrow_utilities.hpp
index 1b79fbf9eda..e4bdedf6603 100644
--- a/cpp/src/interop/arrow_utilities.hpp
+++ b/cpp/src/interop/arrow_utilities.hpp
@@ -17,7 +17,6 @@
 #pragma once
 
 #include <cudf/types.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
 #include <rmm/device_buffer.hpp>
diff --git a/cpp/src/interop/dlpack.cpp b/cpp/src/interop/dlpack.cpp
index a1be6aade4e..4395b741e53 100644
--- a/cpp/src/interop/dlpack.cpp
+++ b/cpp/src/interop/dlpack.cpp
@@ -16,11 +16,8 @@
 #include <cudf/column/column_factories.hpp>
 #include <cudf/detail/interop.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
-#include <cudf/lists/list_view.hpp>
-#include <cudf/structs/struct_view.hpp>
 #include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/traits.hpp>
 #include <cudf/utilities/type_checks.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
diff --git a/cpp/src/io/avro/avro.cpp b/cpp/src/io/avro/avro.cpp
index d5caa4720ac..b3fcca62314 100644
--- a/cpp/src/io/avro/avro.cpp
+++ b/cpp/src/io/avro/avro.cpp
@@ -17,7 +17,6 @@
 #include "avro.hpp"
 
 #include <array>
-#include <cstring>
 #include <unordered_map>
 
 namespace cudf {
diff --git a/cpp/src/io/avro/avro.hpp b/cpp/src/io/avro/avro.hpp
index 2e992546ccc..fd2c781b8a1 100644
--- a/cpp/src/io/avro/avro.hpp
+++ b/cpp/src/io/avro/avro.hpp
@@ -18,11 +18,9 @@
 
 #include "avro_common.hpp"
 
-#include <algorithm>
 #include <array>
 #include <cstddef>
 #include <cstdint>
-#include <cstdio>
 #include <cstring>
 #include <map>
 #include <string>
diff --git a/cpp/src/io/comp/nvcomp_adapter.hpp b/cpp/src/io/comp/nvcomp_adapter.hpp
index 583bd6a3523..2e1cda2d6b7 100644
--- a/cpp/src/io/comp/nvcomp_adapter.hpp
+++ b/cpp/src/io/comp/nvcomp_adapter.hpp
@@ -18,9 +18,7 @@
 
 #include "gpuinflate.hpp"
 
-#include <cudf/io/config_utils.hpp>
 #include <cudf/io/nvcomp_adapter.hpp>
-#include <cudf/utilities/error.hpp>
 #include <cudf/utilities/span.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
diff --git a/cpp/src/io/comp/uncomp.cpp b/cpp/src/io/comp/uncomp.cpp
index d4d6f46b99a..fb8c308065d 100644
--- a/cpp/src/io/comp/uncomp.cpp
+++ b/cpp/src/io/comp/uncomp.cpp
@@ -24,8 +24,6 @@
 #include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/span.hpp>
 
-#include <cuda_runtime.h>
-
 #include <zlib.h>  // uncompress
 
 #include <cstring>  // memset
diff --git a/cpp/src/io/functions.cpp b/cpp/src/io/functions.cpp
index a8682e6a760..ceaeb5d8f85 100644
--- a/cpp/src/io/functions.cpp
+++ b/cpp/src/io/functions.cpp
@@ -32,10 +32,8 @@
 #include <cudf/io/orc_metadata.hpp>
 #include <cudf/io/parquet.hpp>
 #include <cudf/io/parquet_metadata.hpp>
-#include <cudf/table/table.hpp>
 #include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 #include <algorithm>
 #include <utility>
diff --git a/cpp/src/io/json/host_tree_algorithms.cu b/cpp/src/io/json/host_tree_algorithms.cu
index d06338c6f69..570a00cbfc2 100644
--- a/cpp/src/io/json/host_tree_algorithms.cu
+++ b/cpp/src/io/json/host_tree_algorithms.cu
@@ -24,6 +24,7 @@
 #include <cudf/detail/utilities/visitor_overload.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 #include <cudf/types.hpp>
+#include <cudf/utilities/bit.hpp>
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/span.hpp>
diff --git a/cpp/src/io/json/nested_json.hpp b/cpp/src/io/json/nested_json.hpp
index f6be4539d7f..7b3b04dea16 100644
--- a/cpp/src/io/json/nested_json.hpp
+++ b/cpp/src/io/json/nested_json.hpp
@@ -19,10 +19,7 @@
 #include <cudf/io/detail/tokenize_json.hpp>
 #include <cudf/io/types.hpp>
 #include <cudf/types.hpp>
-#include <cudf/utilities/bit.hpp>
-#include <cudf/utilities/error.hpp>
 #include <cudf/utilities/export.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 #include <map>
 #include <vector>
diff --git a/cpp/src/io/orc/reader_impl_decode.cu b/cpp/src/io/orc/reader_impl_decode.cu
index c42348a165f..0081ed30d17 100644
--- a/cpp/src/io/orc/reader_impl_decode.cu
+++ b/cpp/src/io/orc/reader_impl_decode.cu
@@ -23,6 +23,7 @@
 
 #include <cudf/detail/copy.hpp>
 #include <cudf/detail/device_scalar.hpp>
+#include <cudf/detail/null_mask.hpp>
 #include <cudf/detail/transform.hpp>
 #include <cudf/detail/utilities/integer_utils.hpp>
 #include <cudf/detail/utilities/vector_factories.hpp>
diff --git a/cpp/src/io/orc/reader_impl_helpers.cpp b/cpp/src/io/orc/reader_impl_helpers.cpp
index 4c1079cffe8..7e5db4b7617 100644
--- a/cpp/src/io/orc/reader_impl_helpers.cpp
+++ b/cpp/src/io/orc/reader_impl_helpers.cpp
@@ -16,8 +16,6 @@
 
 #include "reader_impl_helpers.hpp"
 
-#include <cudf/utilities/memory_resource.hpp>
-
 namespace cudf::io::orc::detail {
 
 std::unique_ptr<column> create_empty_column(size_type orc_col_id,
diff --git a/cpp/src/io/orc/reader_impl_helpers.hpp b/cpp/src/io/orc/reader_impl_helpers.hpp
index 5528b2ee763..4cded30d89b 100644
--- a/cpp/src/io/orc/reader_impl_helpers.hpp
+++ b/cpp/src/io/orc/reader_impl_helpers.hpp
@@ -20,9 +20,6 @@
 #include "io/orc/orc.hpp"
 #include "io/utilities/column_buffer.hpp"
 
-#include <cudf/io/orc.hpp>
-#include <cudf/utilities/memory_resource.hpp>
-
 #include <rmm/cuda_stream_view.hpp>
 
 #include <memory>
diff --git a/cpp/src/io/parquet/arrow_schema_writer.cpp b/cpp/src/io/parquet/arrow_schema_writer.cpp
index ddf65e9020f..d15435b2553 100644
--- a/cpp/src/io/parquet/arrow_schema_writer.cpp
+++ b/cpp/src/io/parquet/arrow_schema_writer.cpp
@@ -27,7 +27,6 @@
 #include "ipc/Schema_generated.h"
 #include "writer_impl_helpers.hpp"
 
-#include <cudf/detail/utilities/integer_utils.hpp>
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
diff --git a/cpp/src/io/parquet/arrow_schema_writer.hpp b/cpp/src/io/parquet/arrow_schema_writer.hpp
index 9bc435bf6c8..66810ee163a 100644
--- a/cpp/src/io/parquet/arrow_schema_writer.hpp
+++ b/cpp/src/io/parquet/arrow_schema_writer.hpp
@@ -22,10 +22,9 @@
 #pragma once
 
 #include <cudf/detail/utilities/linked_column.hpp>
-#include <cudf/io/data_sink.hpp>
-#include <cudf/io/detail/parquet.hpp>
+#include <cudf/io/detail/utils.hpp>
+#include <cudf/io/types.hpp>
 #include <cudf/strings/detail/utilities.hpp>
-#include <cudf/types.hpp>
 
 namespace cudf::io::parquet::detail {
 
diff --git a/cpp/src/io/parquet/compact_protocol_reader.hpp b/cpp/src/io/parquet/compact_protocol_reader.hpp
index 12c24e2b848..b87f2e9c692 100644
--- a/cpp/src/io/parquet/compact_protocol_reader.hpp
+++ b/cpp/src/io/parquet/compact_protocol_reader.hpp
@@ -22,10 +22,7 @@
 
 #include <algorithm>
 #include <cstddef>
-#include <optional>
-#include <string>
 #include <utility>
-#include <vector>
 
 namespace CUDF_EXPORT cudf {
 namespace io::parquet::detail {
diff --git a/cpp/src/io/parquet/compact_protocol_writer.hpp b/cpp/src/io/parquet/compact_protocol_writer.hpp
index d4778b1ea15..05859d60c03 100644
--- a/cpp/src/io/parquet/compact_protocol_writer.hpp
+++ b/cpp/src/io/parquet/compact_protocol_writer.hpp
@@ -17,7 +17,6 @@
 #pragma once
 
 #include "parquet.hpp"
-#include "parquet_common.hpp"
 
 #include <algorithm>
 #include <cstddef>
diff --git a/cpp/src/io/parquet/predicate_pushdown.cpp b/cpp/src/io/parquet/predicate_pushdown.cpp
index 3fce06de056..cd3dcd2bce4 100644
--- a/cpp/src/io/parquet/predicate_pushdown.cpp
+++ b/cpp/src/io/parquet/predicate_pushdown.cpp
@@ -23,7 +23,6 @@
 #include <cudf/detail/transform.hpp>
 #include <cudf/detail/utilities/integer_utils.hpp>
 #include <cudf/detail/utilities/vector_factories.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/span.hpp>
diff --git a/cpp/src/io/parquet/reader.cpp b/cpp/src/io/parquet/reader.cpp
index dd354b905f3..170c6e8857f 100644
--- a/cpp/src/io/parquet/reader.cpp
+++ b/cpp/src/io/parquet/reader.cpp
@@ -16,8 +16,6 @@
 
 #include "reader_impl.hpp"
 
-#include <cudf/utilities/memory_resource.hpp>
-
 namespace cudf::io::parquet::detail {
 
 reader::reader() = default;
diff --git a/cpp/src/io/parquet/reader_impl.cpp b/cpp/src/io/parquet/reader_impl.cpp
index 0705ff6f5cc..fed1a309064 100644
--- a/cpp/src/io/parquet/reader_impl.cpp
+++ b/cpp/src/io/parquet/reader_impl.cpp
@@ -21,11 +21,9 @@
 #include <cudf/detail/stream_compaction.hpp>
 #include <cudf/detail/transform.hpp>
 #include <cudf/detail/utilities/stream_pool.hpp>
-#include <cudf/detail/utilities/vector_factories.hpp>
 #include <cudf/strings/detail/utilities.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 
-#include <thrust/binary_search.h>
 #include <thrust/iterator/counting_iterator.h>
 
 #include <bitset>
diff --git a/cpp/src/io/text/data_chunk_source_factories.cpp b/cpp/src/io/text/data_chunk_source_factories.cpp
index 4baea8655e0..f4a2f29026a 100644
--- a/cpp/src/io/text/data_chunk_source_factories.cpp
+++ b/cpp/src/io/text/data_chunk_source_factories.cpp
@@ -22,10 +22,6 @@
 #include <cudf/detail/utilities/vector_factories.hpp>
 #include <cudf/io/text/data_chunk_source_factories.hpp>
 
-#include <rmm/device_buffer.hpp>
-
-#include <thrust/host_vector.h>
-
 #include <fstream>
 
 namespace cudf::io::text {
diff --git a/cpp/src/io/utilities/column_buffer.cpp b/cpp/src/io/utilities/column_buffer.cpp
index 249dc3b5875..6d954753af8 100644
--- a/cpp/src/io/utilities/column_buffer.cpp
+++ b/cpp/src/io/utilities/column_buffer.cpp
@@ -21,12 +21,12 @@
 
 #include "column_buffer.hpp"
 
+#include <cudf/detail/null_mask.hpp>
 #include <cudf/detail/utilities/vector_factories.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 
-#include <iomanip>
 #include <sstream>
 
 namespace cudf::io::detail {
diff --git a/cpp/src/io/utilities/column_buffer.hpp b/cpp/src/io/utilities/column_buffer.hpp
index e73b2bc88de..31c8b781e77 100644
--- a/cpp/src/io/utilities/column_buffer.hpp
+++ b/cpp/src/io/utilities/column_buffer.hpp
@@ -22,12 +22,9 @@
 #pragma once
 
 #include <cudf/column/column_factories.hpp>
-#include <cudf/detail/null_mask.hpp>
 #include <cudf/io/types.hpp>
-#include <cudf/null_mask.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/memory_resource.hpp>
-#include <cudf/utilities/traits.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
 #include <rmm/device_buffer.hpp>
@@ -35,6 +32,8 @@
 
 #include <thrust/pair.h>
 
+#include <optional>
+
 namespace cudf {
 namespace io {
 namespace detail {
diff --git a/cpp/src/io/utilities/config_utils.cpp b/cpp/src/io/utilities/config_utils.cpp
index 813743fa7b4..b66742569d9 100644
--- a/cpp/src/io/utilities/config_utils.cpp
+++ b/cpp/src/io/utilities/config_utils.cpp
@@ -16,14 +16,10 @@
 
 #include "getenv_or.hpp"
 
-#include <cudf/detail/utilities/logger.hpp>
 #include <cudf/utilities/error.hpp>
 
 #include <kvikio/defaults.hpp>
 
-#include <cstdlib>
-#include <mutex>
-#include <sstream>
 #include <string>
 
 namespace cudf::io {
diff --git a/cpp/src/io/utilities/datasource.cpp b/cpp/src/io/utilities/datasource.cpp
index 4e8908a8942..9668b30e9a9 100644
--- a/cpp/src/io/utilities/datasource.cpp
+++ b/cpp/src/io/utilities/datasource.cpp
@@ -33,7 +33,6 @@
 #include <sys/mman.h>
 #include <unistd.h>
 
-#include <unordered_map>
 #include <vector>
 
 namespace cudf {
diff --git a/cpp/src/io/utilities/file_io_utilities.cpp b/cpp/src/io/utilities/file_io_utilities.cpp
index 98ed9b28f0a..93cdccfbb9f 100644
--- a/cpp/src/io/utilities/file_io_utilities.cpp
+++ b/cpp/src/io/utilities/file_io_utilities.cpp
@@ -22,8 +22,6 @@
 #include <cudf/detail/utilities/logger.hpp>
 #include <cudf/io/config_utils.hpp>
 
-#include <rmm/device_buffer.hpp>
-
 #include <dlfcn.h>
 
 #include <cerrno>
diff --git a/cpp/src/io/utilities/row_selection.cpp b/cpp/src/io/utilities/row_selection.cpp
index c0bbca39167..cf252fe63af 100644
--- a/cpp/src/io/utilities/row_selection.cpp
+++ b/cpp/src/io/utilities/row_selection.cpp
@@ -16,10 +16,7 @@
 
 #include "io/utilities/row_selection.hpp"
 
-#include <cudf/utilities/error.hpp>
-
 #include <algorithm>
-#include <limits>
 
 namespace cudf::io::detail {
 
diff --git a/cpp/src/io/utilities/row_selection.hpp b/cpp/src/io/utilities/row_selection.hpp
index 7c607099cdc..e826feff201 100644
--- a/cpp/src/io/utilities/row_selection.hpp
+++ b/cpp/src/io/utilities/row_selection.hpp
@@ -15,7 +15,7 @@
  */
 #pragma once
 
-#include <cudf/types.hpp>
+#include <cudf/utilities/export.hpp>
 
 #include <cstdint>
 #include <optional>
diff --git a/cpp/src/jit/cache.cpp b/cpp/src/jit/cache.cpp
index 89c47d246d0..34a0bdce124 100644
--- a/cpp/src/jit/cache.cpp
+++ b/cpp/src/jit/cache.cpp
@@ -16,11 +16,8 @@
 
 #include <cudf/utilities/error.hpp>
 
-#include <cuda.h>
-
 #include <jitify2.hpp>
 
-#include <cstddef>
 #include <filesystem>
 
 namespace cudf {
diff --git a/cpp/src/jit/util.cpp b/cpp/src/jit/util.cpp
index 0585e02a031..d9a29203133 100644
--- a/cpp/src/jit/util.cpp
+++ b/cpp/src/jit/util.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2019-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,8 +19,6 @@
 #include <cudf/utilities/traits.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
-#include <string>
-
 namespace cudf {
 namespace jit {
 struct get_data_ptr_functor {
diff --git a/cpp/src/quantiles/tdigest/tdigest_column_view.cpp b/cpp/src/quantiles/tdigest/tdigest_column_view.cpp
index a9f86ac1b5f..17844b6bb0a 100644
--- a/cpp/src/quantiles/tdigest/tdigest_column_view.cpp
+++ b/cpp/src/quantiles/tdigest/tdigest_column_view.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2022, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <cudf/detail/tdigest/tdigest.hpp>
 #include <cudf/lists/lists_column_view.hpp>
 #include <cudf/structs/structs_column_view.hpp>
 #include <cudf/tdigest/tdigest_column_view.hpp>
diff --git a/cpp/src/reductions/reductions.cpp b/cpp/src/reductions/reductions.cpp
index d187375b69f..75ebc078930 100644
--- a/cpp/src/reductions/reductions.cpp
+++ b/cpp/src/reductions/reductions.cpp
@@ -26,8 +26,6 @@
 #include <cudf/reduction/detail/histogram.hpp>
 #include <cudf/reduction/detail/reduction_functions.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
-#include <cudf/structs/structs_column_view.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/type_checks.hpp>
diff --git a/cpp/src/reductions/scan/scan.cpp b/cpp/src/reductions/scan/scan.cpp
index d3c0b54f286..b91ae19b51a 100644
--- a/cpp/src/reductions/scan/scan.cpp
+++ b/cpp/src/reductions/scan/scan.cpp
@@ -14,13 +14,10 @@
  * limitations under the License.
  */
 
-#include <cudf/column/column_view.hpp>
 #include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
 #include <cudf/detail/scan.hpp>
 #include <cudf/reduction.hpp>
-#include <cudf/utilities/default_stream.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 namespace cudf {
 
diff --git a/cpp/src/reductions/segmented/reductions.cpp b/cpp/src/reductions/segmented/reductions.cpp
index 40d1d8a0a53..c4f6c135dde 100644
--- a/cpp/src/reductions/segmented/reductions.cpp
+++ b/cpp/src/reductions/segmented/reductions.cpp
@@ -13,16 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#include <cudf/column/column.hpp>
-#include <cudf/copying.hpp>
 #include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/detail/nvtx/ranges.hpp>
 #include <cudf/reduction.hpp>
 #include <cudf/reduction/detail/segmented_reduction_functions.hpp>
 #include <cudf/types.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/type_checks.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
diff --git a/cpp/src/rolling/detail/optimized_unbounded_window.cpp b/cpp/src/rolling/detail/optimized_unbounded_window.cpp
index 72c23395a93..7cad31c0658 100644
--- a/cpp/src/rolling/detail/optimized_unbounded_window.cpp
+++ b/cpp/src/rolling/detail/optimized_unbounded_window.cpp
@@ -18,13 +18,10 @@
 #include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/detail/gather.hpp>
 #include <cudf/detail/groupby/sort_helper.hpp>
-#include <cudf/detail/utilities/assert.cuh>
 #include <cudf/groupby.hpp>
 #include <cudf/reduction/detail/reduction.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/types.hpp>
-#include <cudf/unary.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 
 namespace cudf::detail {
diff --git a/cpp/src/rolling/detail/range_window_bounds.hpp b/cpp/src/rolling/detail/range_window_bounds.hpp
index 8a53e937f98..77cb2a8c7f5 100644
--- a/cpp/src/rolling/detail/range_window_bounds.hpp
+++ b/cpp/src/rolling/detail/range_window_bounds.hpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,10 +16,7 @@
 #pragma once
 
 #include <cudf/rolling/range_window_bounds.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/types.hpp>
-#include <cudf/utilities/default_stream.hpp>
-#include <cudf/wrappers/durations.hpp>
 
 namespace cudf {
 namespace detail {
diff --git a/cpp/src/rolling/range_window_bounds.cpp b/cpp/src/rolling/range_window_bounds.cpp
index 69792136c64..7f698dfcd6b 100644
--- a/cpp/src/rolling/range_window_bounds.cpp
+++ b/cpp/src/rolling/range_window_bounds.cpp
@@ -19,7 +19,6 @@
 #include <cudf/rolling/range_window_bounds.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/types.hpp>
-#include <cudf/wrappers/durations.hpp>
 
 namespace cudf {
 namespace {
diff --git a/cpp/src/scalar/scalar.cpp b/cpp/src/scalar/scalar.cpp
index 31535198c58..4ec2174a96f 100644
--- a/cpp/src/scalar/scalar.cpp
+++ b/cpp/src/scalar/scalar.cpp
@@ -26,8 +26,6 @@
 #include <rmm/cuda_stream_view.hpp>
 #include <rmm/device_buffer.hpp>
 
-#include <thrust/iterator/counting_iterator.h>
-
 #include <string>
 
 namespace cudf {
diff --git a/cpp/src/scalar/scalar_factories.cpp b/cpp/src/scalar/scalar_factories.cpp
index 656fe61fbbe..9f242bdffe0 100644
--- a/cpp/src/scalar/scalar_factories.cpp
+++ b/cpp/src/scalar/scalar_factories.cpp
@@ -16,10 +16,8 @@
 
 #include <cudf/detail/copy.hpp>
 #include <cudf/lists/lists_column_view.hpp>
-#include <cudf/null_mask.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/utilities/error.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/traits.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
diff --git a/cpp/src/strings/regex/regexec.cpp b/cpp/src/strings/regex/regexec.cpp
index d1990733e81..60ad714dfec 100644
--- a/cpp/src/strings/regex/regexec.cpp
+++ b/cpp/src/strings/regex/regexec.cpp
@@ -24,7 +24,6 @@
 #include <rmm/cuda_stream_view.hpp>
 #include <rmm/device_buffer.hpp>
 
-#include <algorithm>
 #include <functional>
 #include <numeric>
 
diff --git a/cpp/src/strings/strings_scalar_factories.cpp b/cpp/src/strings/strings_scalar_factories.cpp
index 219d1174d42..1cc405234b2 100644
--- a/cpp/src/strings/strings_scalar_factories.cpp
+++ b/cpp/src/strings/strings_scalar_factories.cpp
@@ -16,7 +16,6 @@
 
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
 
diff --git a/cpp/src/structs/structs_column_view.cpp b/cpp/src/structs/structs_column_view.cpp
index b0284e9cb96..e14142a9ad1 100644
--- a/cpp/src/structs/structs_column_view.cpp
+++ b/cpp/src/structs/structs_column_view.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2020-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <cudf/column/column.hpp>
 #include <cudf/detail/null_mask.hpp>
 #include <cudf/structs/structs_column_view.hpp>
 #include <cudf/types.hpp>
diff --git a/cpp/src/structs/utilities.cpp b/cpp/src/structs/utilities.cpp
index 5df9943303d..4012ee3d21c 100644
--- a/cpp/src/structs/utilities.cpp
+++ b/cpp/src/structs/utilities.cpp
@@ -21,13 +21,10 @@
 #include <cudf/detail/structs/utilities.hpp>
 #include <cudf/detail/unary.hpp>
 #include <cudf/structs/structs_column_view.hpp>
-#include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/span.hpp>
-#include <cudf/utilities/traits.hpp>
 
 #include <thrust/iterator/counting_iterator.h>
 #include <thrust/iterator/transform_iterator.h>
diff --git a/cpp/src/table/table.cpp b/cpp/src/table/table.cpp
index cb707c94288..41c64c6decb 100644
--- a/cpp/src/table/table.cpp
+++ b/cpp/src/table/table.cpp
@@ -18,7 +18,6 @@
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/utilities/error.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 #include <rmm/cuda_stream_view.hpp>
 
diff --git a/cpp/src/table/table_view.cpp b/cpp/src/table/table_view.cpp
index 8a5340dc20d..659beb749af 100644
--- a/cpp/src/table/table_view.cpp
+++ b/cpp/src/table/table_view.cpp
@@ -20,10 +20,7 @@
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/type_checks.hpp>
 
-#include <thrust/iterator/counting_iterator.h>
-
 #include <algorithm>
-#include <cassert>
 #include <vector>
 
 namespace cudf {
diff --git a/cpp/src/transform/transform.cpp b/cpp/src/transform/transform.cpp
index 52b96bc9039..b919ac16956 100644
--- a/cpp/src/transform/transform.cpp
+++ b/cpp/src/transform/transform.cpp
@@ -23,8 +23,6 @@
 #include <cudf/detail/nvtx/ranges.hpp>
 #include <cudf/detail/transform.hpp>
 #include <cudf/null_mask.hpp>
-#include <cudf/utilities/default_stream.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/traits.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
diff --git a/cpp/src/utilities/cuda.cpp b/cpp/src/utilities/cuda.cpp
index 53ca0608170..d979bda41d0 100644
--- a/cpp/src/utilities/cuda.cpp
+++ b/cpp/src/utilities/cuda.cpp
@@ -18,8 +18,6 @@
 #include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
 
-#include <cuda_runtime.h>
-
 namespace cudf::detail {
 
 cudf::size_type num_multiprocessors()
diff --git a/cpp/src/utilities/host_memory.cpp b/cpp/src/utilities/host_memory.cpp
index 9d8e3cf2fa6..e30806a5011 100644
--- a/cpp/src/utilities/host_memory.cpp
+++ b/cpp/src/utilities/host_memory.cpp
@@ -18,7 +18,6 @@
 #include <cudf/detail/utilities/stream_pool.hpp>
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/export.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/pinned_memory.hpp>
 
 #include <rmm/cuda_device.hpp>
diff --git a/cpp/src/utilities/prefetch.cpp b/cpp/src/utilities/prefetch.cpp
index 58971552758..000526723c4 100644
--- a/cpp/src/utilities/prefetch.cpp
+++ b/cpp/src/utilities/prefetch.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
 #include <cudf/utilities/prefetch.hpp>
 
diff --git a/cpp/src/utilities/stream_pool.cpp b/cpp/src/utilities/stream_pool.cpp
index 8c29182bfb5..7069b59be26 100644
--- a/cpp/src/utilities/stream_pool.cpp
+++ b/cpp/src/utilities/stream_pool.cpp
@@ -23,7 +23,6 @@
 
 #include <algorithm>
 #include <cstddef>
-#include <memory>
 #include <mutex>
 #include <vector>
 
diff --git a/cpp/src/utilities/traits.cpp b/cpp/src/utilities/traits.cpp
index a68dc84e340..c1e71f5f8f9 100644
--- a/cpp/src/utilities/traits.cpp
+++ b/cpp/src/utilities/traits.cpp
@@ -19,8 +19,6 @@
 #include <cudf/utilities/type_dispatcher.hpp>
 #include <cudf/wrappers/dictionary.hpp>
 
-#include <cuda_runtime.h>
-
 namespace cudf {
 
 namespace {
diff --git a/cpp/src/utilities/type_checks.cpp b/cpp/src/utilities/type_checks.cpp
index 3095b342748..84c8529641d 100644
--- a/cpp/src/utilities/type_checks.cpp
+++ b/cpp/src/utilities/type_checks.cpp
@@ -21,8 +21,6 @@
 #include <cudf/utilities/type_checks.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
-#include <thrust/iterator/counting_iterator.h>
-
 #include <algorithm>
 
 namespace cudf {
diff --git a/cpp/tests/ast/transform_tests.cpp b/cpp/tests/ast/transform_tests.cpp
index a197d3432e9..e28d92bb615 100644
--- a/cpp/tests/ast/transform_tests.cpp
+++ b/cpp/tests/ast/transform_tests.cpp
@@ -18,7 +18,6 @@
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
 
 #include <cudf/ast/expressions.hpp>
@@ -26,14 +25,8 @@
 #include <cudf/column/column_view.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/scalar/scalar.hpp>
-#include <cudf/scalar/scalar_device_view.cuh>
-#include <cudf/scalar/scalar_factories.hpp>
-#include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/transform.hpp>
-#include <cudf/types.hpp>
-
-#include <rmm/device_uvector.hpp>
 
 #include <thrust/iterator/counting_iterator.h>
 
@@ -41,7 +34,6 @@
 #include <limits>
 #include <list>
 #include <random>
-#include <type_traits>
 #include <vector>
 
 template <typename T>
diff --git a/cpp/tests/binaryop/binop-compiled-test.cpp b/cpp/tests/binaryop/binop-compiled-test.cpp
index aa5b49567e6..3bd67001c16 100644
--- a/cpp/tests/binaryop/binop-compiled-test.cpp
+++ b/cpp/tests/binaryop/binop-compiled-test.cpp
@@ -26,9 +26,7 @@
 #include <cudf/binaryop.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/fixed_point/fixed_point.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/types.hpp>
-#include <cudf/unary.hpp>
 
 #include <thrust/iterator/counting_iterator.h>
 
diff --git a/cpp/tests/binaryop/binop-generic-ptx-test.cpp b/cpp/tests/binaryop/binop-generic-ptx-test.cpp
index 03cc87a1968..e9a2761db4a 100644
--- a/cpp/tests/binaryop/binop-generic-ptx-test.cpp
+++ b/cpp/tests/binaryop/binop-generic-ptx-test.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2019-2024, NVIDIA CORPORATION.
  *
  * Copyright 2018-2019 BlazingDB, Inc.
  *     Copyright 2018 Christian Noboa Mardini <christian@blazingdb.com>
@@ -19,7 +19,6 @@
 
 #include <tests/binaryop/assert-binops.h>
 #include <tests/binaryop/binop-fixture.hpp>
-#include <tests/binaryop/util/operation.h>
 #include <tests/binaryop/util/runtime_support.h>
 
 #include <cudf/binaryop.hpp>
diff --git a/cpp/tests/bitmask/bitmask_tests.cpp b/cpp/tests/bitmask/bitmask_tests.cpp
index fe221fb1c48..799bf646e52 100644
--- a/cpp/tests/bitmask/bitmask_tests.cpp
+++ b/cpp/tests/bitmask/bitmask_tests.cpp
@@ -16,7 +16,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/random.hpp>
 #include <cudf_test/testing_main.hpp>
 
diff --git a/cpp/tests/column/bit_cast_test.cpp b/cpp/tests/column/bit_cast_test.cpp
index ab230ab036e..5570a7d498c 100644
--- a/cpp/tests/column/bit_cast_test.cpp
+++ b/cpp/tests/column/bit_cast_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_view.hpp>
@@ -26,8 +25,6 @@
 
 #include <thrust/iterator/counting_iterator.h>
 
-#include <random>
-
 template <typename T, typename T2 = void>
 struct rep_type_impl {
   using type = void;
diff --git a/cpp/tests/column/column_test.cpp b/cpp/tests/column/column_test.cpp
index 631f5150829..d700adaebd5 100644
--- a/cpp/tests/column/column_test.cpp
+++ b/cpp/tests/column/column_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_list_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
diff --git a/cpp/tests/column/column_view_device_span_test.cpp b/cpp/tests/column/column_view_device_span_test.cpp
index 6de9121158b..470437f4112 100644
--- a/cpp/tests/column/column_view_device_span_test.cpp
+++ b/cpp/tests/column/column_view_device_span_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_view.hpp>
diff --git a/cpp/tests/column/column_view_shallow_test.cpp b/cpp/tests/column/column_view_shallow_test.cpp
index 37ab4b8f387..ad344476332 100644
--- a/cpp/tests/column/column_view_shallow_test.cpp
+++ b/cpp/tests/column/column_view_shallow_test.cpp
@@ -15,9 +15,7 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_view.hpp>
diff --git a/cpp/tests/column/factories_test.cpp b/cpp/tests/column/factories_test.cpp
index 603187f0330..aa9d508b6aa 100644
--- a/cpp/tests/column/factories_test.cpp
+++ b/cpp/tests/column/factories_test.cpp
@@ -26,11 +26,8 @@
 #include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/strings/utilities.hpp>
 #include <cudf/types.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
-#include <rmm/cuda_stream_view.hpp>
-
 #include <thrust/iterator/counting_iterator.h>
 
 class ColumnFactoryTest : public cudf::test::BaseFixture {
diff --git a/cpp/tests/copying/concatenate_tests.cpp b/cpp/tests/copying/concatenate_tests.cpp
index 18140c34abd..aedc498964a 100644
--- a/cpp/tests/copying/concatenate_tests.cpp
+++ b/cpp/tests/copying/concatenate_tests.cpp
@@ -34,8 +34,6 @@
 #include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/error.hpp>
 
-#include <thrust/iterator/constant_iterator.h>
-
 #include <numeric>
 #include <stdexcept>
 #include <string>
diff --git a/cpp/tests/copying/copy_if_else_nested_tests.cpp b/cpp/tests/copying/copy_if_else_nested_tests.cpp
index cfbd181f944..e1cdfe9beed 100644
--- a/cpp/tests/copying/copy_if_else_nested_tests.cpp
+++ b/cpp/tests/copying/copy_if_else_nested_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/copying/copy_range_tests.cpp b/cpp/tests/copying/copy_range_tests.cpp
index 25d93da277b..e2133a546e4 100644
--- a/cpp/tests/copying/copy_range_tests.cpp
+++ b/cpp/tests/copying/copy_range_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
diff --git a/cpp/tests/copying/copy_tests.cpp b/cpp/tests/copying/copy_tests.cpp
index 4124f749012..9c00725d5d2 100644
--- a/cpp/tests/copying/copy_tests.cpp
+++ b/cpp/tests/copying/copy_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/copying/gather_list_tests.cpp b/cpp/tests/copying/gather_list_tests.cpp
index 247090aac90..93f71345c5c 100644
--- a/cpp/tests/copying/gather_list_tests.cpp
+++ b/cpp/tests/copying/gather_list_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2020-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,8 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_view.hpp>
diff --git a/cpp/tests/copying/gather_str_tests.cpp b/cpp/tests/copying/gather_str_tests.cpp
index 28098878086..795e3f30aa1 100644
--- a/cpp/tests/copying/gather_str_tests.cpp
+++ b/cpp/tests/copying/gather_str_tests.cpp
@@ -16,7 +16,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/table_utilities.hpp>
 
 #include <cudf/column/column_view.hpp>
diff --git a/cpp/tests/copying/gather_struct_tests.cpp b/cpp/tests/copying/gather_struct_tests.cpp
index 1598ab2646a..b2c0f7acc3a 100644
--- a/cpp/tests/copying/gather_struct_tests.cpp
+++ b/cpp/tests/copying/gather_struct_tests.cpp
@@ -17,20 +17,15 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_factories.hpp>
 #include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/lists/lists_column_view.hpp>
-#include <cudf/null_mask.hpp>
-#include <cudf/structs/structs_column_view.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
-#include <cudf/utilities/error.hpp>
 
 #include <rmm/device_buffer.hpp>
 
diff --git a/cpp/tests/copying/gather_tests.cpp b/cpp/tests/copying/gather_tests.cpp
index 07ce672b14d..908dcd67673 100644
--- a/cpp/tests/copying/gather_tests.cpp
+++ b/cpp/tests/copying/gather_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/random.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
diff --git a/cpp/tests/copying/get_value_tests.cpp b/cpp/tests/copying/get_value_tests.cpp
index 90ff97e7355..b2d64dac7c8 100644
--- a/cpp/tests/copying/get_value_tests.cpp
+++ b/cpp/tests/copying/get_value_tests.cpp
@@ -16,10 +16,8 @@
 
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
-#include <cudf_test/type_list_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_factories.hpp>
diff --git a/cpp/tests/copying/purge_nonempty_nulls_tests.cpp b/cpp/tests/copying/purge_nonempty_nulls_tests.cpp
index 4f28ff12941..1f76efdc4c3 100644
--- a/cpp/tests/copying/purge_nonempty_nulls_tests.cpp
+++ b/cpp/tests/copying/purge_nonempty_nulls_tests.cpp
@@ -16,13 +16,10 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 
 #include <cudf/column/column_view.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/detail/gather.hpp>
-#include <cudf/detail/iterator.cuh>
 #include <cudf/detail/null_mask.hpp>
 #include <cudf/lists/lists_column_view.hpp>
 #include <cudf/strings/strings_column_view.hpp>
diff --git a/cpp/tests/copying/reverse_tests.cpp b/cpp/tests/copying/reverse_tests.cpp
index e4b2d319ddf..46516436901 100644
--- a/cpp/tests/copying/reverse_tests.cpp
+++ b/cpp/tests/copying/reverse_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,17 +17,13 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/scalar/scalar.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 
-#include <thrust/execution_policy.h>
 #include <thrust/host_vector.h>
 #include <thrust/iterator/counting_iterator.h>
 #include <thrust/tabulate.h>
diff --git a/cpp/tests/copying/sample_tests.cpp b/cpp/tests/copying/sample_tests.cpp
index 2f76e3f1fcd..8be5d8c1fbb 100644
--- a/cpp/tests/copying/sample_tests.cpp
+++ b/cpp/tests/copying/sample_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2020-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,12 +15,9 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/table_utilities.hpp>
 
-#include <cudf/column/column.hpp>
 #include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/sorting.hpp>
diff --git a/cpp/tests/copying/scatter_list_scalar_tests.cpp b/cpp/tests/copying/scatter_list_scalar_tests.cpp
index 42d2e004d6b..23faa6e5b86 100644
--- a/cpp/tests/copying/scatter_list_scalar_tests.cpp
+++ b/cpp/tests/copying/scatter_list_scalar_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,6 @@
 
 #include <cudf/column/column_factories.hpp>
 #include <cudf/null_mask.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 
 using mask_vector = std::vector<cudf::valid_type>;
 using size_column = cudf::test::fixed_width_column_wrapper<cudf::size_type>;
diff --git a/cpp/tests/copying/scatter_list_tests.cpp b/cpp/tests/copying/scatter_list_tests.cpp
index a82860a3eec..1f87fcfcc99 100644
--- a/cpp/tests/copying/scatter_list_tests.cpp
+++ b/cpp/tests/copying/scatter_list_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_view.hpp>
diff --git a/cpp/tests/copying/scatter_struct_scalar_tests.cpp b/cpp/tests/copying/scatter_struct_scalar_tests.cpp
index 78572b0bb37..1d1da8a1b1e 100644
--- a/cpp/tests/copying/scatter_struct_scalar_tests.cpp
+++ b/cpp/tests/copying/scatter_struct_scalar_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,6 @@
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/column/column_factories.hpp>
 #include <cudf/copying.hpp>
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
diff --git a/cpp/tests/copying/scatter_struct_tests.cpp b/cpp/tests/copying/scatter_struct_tests.cpp
index c92244d047b..7d88e9af85f 100644
--- a/cpp/tests/copying/scatter_struct_tests.cpp
+++ b/cpp/tests/copying/scatter_struct_tests.cpp
@@ -21,7 +21,6 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
-#include <cudf/lists/lists_column_view.hpp>
 #include <cudf/table/table_view.hpp>
 
 using namespace cudf::test::iterators;
diff --git a/cpp/tests/copying/scatter_tests.cpp b/cpp/tests/copying/scatter_tests.cpp
index 41a753cd0ac..74c04446bdd 100644
--- a/cpp/tests/copying/scatter_tests.cpp
+++ b/cpp/tests/copying/scatter_tests.cpp
@@ -15,7 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
@@ -23,7 +22,6 @@
 #include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/scalar/scalar_factories.hpp>
-#include <cudf/stream_compaction.hpp>
 
 #include <stdexcept>
 
diff --git a/cpp/tests/copying/segmented_gather_list_tests.cpp b/cpp/tests/copying/segmented_gather_list_tests.cpp
index 8881fb344a2..a133ae43872 100644
--- a/cpp/tests/copying/segmented_gather_list_tests.cpp
+++ b/cpp/tests/copying/segmented_gather_list_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2020-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,7 +22,6 @@
 #include <cudf/column/column_view.hpp>
 #include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/detail/null_mask.hpp>
 #include <cudf/lists/gather.hpp>
 #include <cudf/lists/lists_column_view.hpp>
 
diff --git a/cpp/tests/copying/shift_tests.cpp b/cpp/tests/copying/shift_tests.cpp
index ff6808d9a79..72a8e7357bc 100644
--- a/cpp/tests/copying/shift_tests.cpp
+++ b/cpp/tests/copying/shift_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
@@ -30,7 +29,6 @@
 
 #include <limits>
 #include <memory>
-#include <stdexcept>
 
 using TestTypes = cudf::test::Types<int32_t>;
 
diff --git a/cpp/tests/copying/slice_tests.cpp b/cpp/tests/copying/slice_tests.cpp
index aef0d4ad78a..3868a147fa8 100644
--- a/cpp/tests/copying/slice_tests.cpp
+++ b/cpp/tests/copying/slice_tests.cpp
@@ -22,12 +22,8 @@
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/column/column_factories.hpp>
 #include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/strings/strings_column_view.hpp>
-#include <cudf/utilities/type_dispatcher.hpp>
-#include <cudf/wrappers/timestamps.hpp>
 
 #include <array>
 #include <stdexcept>
diff --git a/cpp/tests/copying/utility_tests.cpp b/cpp/tests/copying/utility_tests.cpp
index 0905f9babdc..90457f8d74c 100644
--- a/cpp/tests/copying/utility_tests.cpp
+++ b/cpp/tests/copying/utility_tests.cpp
@@ -23,7 +23,6 @@
 
 #include <cudf/column/column_factories.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/strings/detail/utilities.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
diff --git a/cpp/tests/datetime/datetime_ops_test.cpp b/cpp/tests/datetime/datetime_ops_test.cpp
index 603edb27c7c..44f99adc0e9 100644
--- a/cpp/tests/datetime/datetime_ops_test.cpp
+++ b/cpp/tests/datetime/datetime_ops_test.cpp
@@ -23,14 +23,11 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_factories.hpp>
-#include <cudf/column/column_view.hpp>
 #include <cudf/datetime.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/types.hpp>
 #include <cudf/wrappers/timestamps.hpp>
 
-#include <thrust/transform.h>
-
 #define XXX false  // stub for null values
 
 constexpr cudf::test::debug_output_level verbosity{cudf::test::debug_output_level::ALL_ERRORS};
diff --git a/cpp/tests/dictionary/add_keys_test.cpp b/cpp/tests/dictionary/add_keys_test.cpp
index 46bf5468922..ebc8c11e86c 100644
--- a/cpp/tests/dictionary/add_keys_test.cpp
+++ b/cpp/tests/dictionary/add_keys_test.cpp
@@ -24,8 +24,6 @@
 #include <cudf/dictionary/update_keys.hpp>
 #include <cudf/utilities/error.hpp>
 
-#include <vector>
-
 struct DictionaryAddKeysTest : public cudf::test::BaseFixture {};
 
 TEST_F(DictionaryAddKeysTest, StringsColumn)
diff --git a/cpp/tests/dictionary/encode_test.cpp b/cpp/tests/dictionary/encode_test.cpp
index 5db0e9fa1e4..dfa3ede5d46 100644
--- a/cpp/tests/dictionary/encode_test.cpp
+++ b/cpp/tests/dictionary/encode_test.cpp
@@ -21,8 +21,6 @@
 #include <cudf/dictionary/dictionary_column_view.hpp>
 #include <cudf/dictionary/encode.hpp>
 
-#include <vector>
-
 struct DictionaryEncodeTest : public cudf::test::BaseFixture {};
 
 TEST_F(DictionaryEncodeTest, EncodeStringColumn)
diff --git a/cpp/tests/dictionary/fill_test.cpp b/cpp/tests/dictionary/fill_test.cpp
index 18696b66e48..bc7d19201aa 100644
--- a/cpp/tests/dictionary/fill_test.cpp
+++ b/cpp/tests/dictionary/fill_test.cpp
@@ -18,13 +18,10 @@
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 
-#include <cudf/dictionary/dictionary_column_view.hpp>
 #include <cudf/dictionary/encode.hpp>
 #include <cudf/filling.hpp>
 #include <cudf/scalar/scalar.hpp>
 
-#include <vector>
-
 struct DictionaryFillTest : public cudf::test::BaseFixture {};
 
 TEST_F(DictionaryFillTest, StringsColumn)
diff --git a/cpp/tests/dictionary/search_test.cpp b/cpp/tests/dictionary/search_test.cpp
index 25501b4fde7..2774173b80a 100644
--- a/cpp/tests/dictionary/search_test.cpp
+++ b/cpp/tests/dictionary/search_test.cpp
@@ -15,7 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 
 #include <cudf/dictionary/detail/search.hpp>
diff --git a/cpp/tests/dictionary/slice_test.cpp b/cpp/tests/dictionary/slice_test.cpp
index d80f8dee079..8c15d6dbecd 100644
--- a/cpp/tests/dictionary/slice_test.cpp
+++ b/cpp/tests/dictionary/slice_test.cpp
@@ -19,7 +19,6 @@
 #include <cudf_test/column_wrapper.hpp>
 
 #include <cudf/copying.hpp>
-#include <cudf/detail/copy.hpp>
 #include <cudf/dictionary/dictionary_column_view.hpp>
 #include <cudf/dictionary/encode.hpp>
 #include <cudf/dictionary/update_keys.hpp>
diff --git a/cpp/tests/filling/fill_tests.cpp b/cpp/tests/filling/fill_tests.cpp
index 26badefe698..a5e2db6a005 100644
--- a/cpp/tests/filling/fill_tests.cpp
+++ b/cpp/tests/filling/fill_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/filling/repeat_tests.cpp b/cpp/tests/filling/repeat_tests.cpp
index 6326765c68b..c856984a4a3 100644
--- a/cpp/tests/filling/repeat_tests.cpp
+++ b/cpp/tests/filling/repeat_tests.cpp
@@ -17,14 +17,11 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/random.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/detail/iterator.cuh>
 #include <cudf/filling.hpp>
-#include <cudf/scalar/scalar.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 
@@ -33,7 +30,6 @@
 
 #include <algorithm>
 #include <numeric>
-#include <random>
 
 constexpr cudf::test::debug_output_level verbosity{cudf::test::debug_output_level::ALL_ERRORS};
 
diff --git a/cpp/tests/filling/sequence_tests.cpp b/cpp/tests/filling/sequence_tests.cpp
index 0783b4e5bbb..53782c90c26 100644
--- a/cpp/tests/filling/sequence_tests.cpp
+++ b/cpp/tests/filling/sequence_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/filling.hpp>
diff --git a/cpp/tests/fixed_point/fixed_point_tests.cpp b/cpp/tests/fixed_point/fixed_point_tests.cpp
index a222289216d..b96c6909e55 100644
--- a/cpp/tests/fixed_point/fixed_point_tests.cpp
+++ b/cpp/tests/fixed_point/fixed_point_tests.cpp
@@ -18,17 +18,14 @@
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/testing_main.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/binaryop.hpp>
 #include <cudf/fixed_point/fixed_point.hpp>
-#include <cudf/null_mask.hpp>
 #include <cudf/unary.hpp>
 
 #include <algorithm>
 #include <limits>
 #include <numeric>
-#include <type_traits>
 #include <vector>
 
 using namespace numeric;
diff --git a/cpp/tests/groupby/collect_list_tests.cpp b/cpp/tests/groupby/collect_list_tests.cpp
index a79b6a32916..ba456084a7c 100644
--- a/cpp/tests/groupby/collect_list_tests.cpp
+++ b/cpp/tests/groupby/collect_list_tests.cpp
@@ -20,8 +20,6 @@
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/detail/aggregation/aggregation.hpp>
-
 template <typename V>
 struct groupby_collect_list_test : public cudf::test::BaseFixture {};
 
diff --git a/cpp/tests/groupby/collect_set_tests.cpp b/cpp/tests/groupby/collect_set_tests.cpp
index 61d2838590b..dfd7eb82c4a 100644
--- a/cpp/tests/groupby/collect_set_tests.cpp
+++ b/cpp/tests/groupby/collect_set_tests.cpp
@@ -19,7 +19,6 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/groupby.hpp>
 #include <cudf/lists/sorting.hpp>
 #include <cudf/sorting.hpp>
diff --git a/cpp/tests/groupby/correlation_tests.cpp b/cpp/tests/groupby/correlation_tests.cpp
index 26f714632dd..f8cc813e877 100644
--- a/cpp/tests/groupby/correlation_tests.cpp
+++ b/cpp/tests/groupby/correlation_tests.cpp
@@ -25,7 +25,6 @@
 #include <cudf/detail/aggregation/aggregation.hpp>
 
 #include <limits>
-#include <vector>
 
 using namespace cudf::test::iterators;
 
diff --git a/cpp/tests/groupby/covariance_tests.cpp b/cpp/tests/groupby/covariance_tests.cpp
index e3eb2da201f..81378bb91e8 100644
--- a/cpp/tests/groupby/covariance_tests.cpp
+++ b/cpp/tests/groupby/covariance_tests.cpp
@@ -23,10 +23,8 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/detail/aggregation/aggregation.hpp>
-#include <cudf/utilities/traits.hpp>
 
 #include <limits>
-#include <vector>
 
 using namespace cudf::test::iterators;
 
diff --git a/cpp/tests/groupby/groupby_test_util.cpp b/cpp/tests/groupby/groupby_test_util.cpp
index 5d99d15ae77..df0375d6a09 100644
--- a/cpp/tests/groupby/groupby_test_util.cpp
+++ b/cpp/tests/groupby/groupby_test_util.cpp
@@ -17,8 +17,8 @@
 #include "groupby_test_util.hpp"
 
 #include <cudf_test/column_utilities.hpp>
-#include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/cudf_gtest.hpp>
+#include <cudf_test/default_stream.hpp>
 #include <cudf_test/table_utilities.hpp>
 
 #include <cudf/column/column_view.hpp>
@@ -27,9 +27,6 @@
 #include <cudf/sorting.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/types.hpp>
-#include <cudf/unary.hpp>
-
-#include <random>
 
 void test_single_agg(cudf::column_view const& keys,
                      cudf::column_view const& values,
diff --git a/cpp/tests/groupby/groupby_test_util.hpp b/cpp/tests/groupby/groupby_test_util.hpp
index 755b0c20f17..9d2e613be3e 100644
--- a/cpp/tests/groupby/groupby_test_util.hpp
+++ b/cpp/tests/groupby/groupby_test_util.hpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2020-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,11 +16,8 @@
 
 #pragma once
 
-#include <cudf/column/column_view.hpp>
 #include <cudf/groupby.hpp>
-#include <cudf/sorting.hpp>
 #include <cudf/types.hpp>
-#include <cudf/utilities/default_stream.hpp>
 
 enum class force_use_sort_impl : bool { NO, YES };
 
diff --git a/cpp/tests/groupby/histogram_tests.cpp b/cpp/tests/groupby/histogram_tests.cpp
index 2d447025919..783cfb17e49 100644
--- a/cpp/tests/groupby/histogram_tests.cpp
+++ b/cpp/tests/groupby/histogram_tests.cpp
@@ -20,7 +20,6 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/groupby.hpp>
 #include <cudf/lists/sorting.hpp>
 #include <cudf/sorting.hpp>
diff --git a/cpp/tests/groupby/max_scan_tests.cpp b/cpp/tests/groupby/max_scan_tests.cpp
index d86de798844..6195e0179ec 100644
--- a/cpp/tests/groupby/max_scan_tests.cpp
+++ b/cpp/tests/groupby/max_scan_tests.cpp
@@ -22,7 +22,6 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/detail/aggregation/aggregation.hpp>
-#include <cudf/dictionary/update_keys.hpp>
 
 using namespace cudf::test::iterators;
 
diff --git a/cpp/tests/groupby/merge_lists_tests.cpp b/cpp/tests/groupby/merge_lists_tests.cpp
index 279d71560b4..4481e2dc022 100644
--- a/cpp/tests/groupby/merge_lists_tests.cpp
+++ b/cpp/tests/groupby/merge_lists_tests.cpp
@@ -21,7 +21,6 @@
 
 #include <cudf/concatenate.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/groupby.hpp>
 #include <cudf/table/table_view.hpp>
 
diff --git a/cpp/tests/groupby/merge_sets_tests.cpp b/cpp/tests/groupby/merge_sets_tests.cpp
index 9736bb84dd6..1bfba265478 100644
--- a/cpp/tests/groupby/merge_sets_tests.cpp
+++ b/cpp/tests/groupby/merge_sets_tests.cpp
@@ -21,7 +21,6 @@
 
 #include <cudf/concatenate.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/groupby.hpp>
 #include <cudf/lists/sorting.hpp>
 #include <cudf/sorting.hpp>
diff --git a/cpp/tests/groupby/rank_scan_tests.cpp b/cpp/tests/groupby/rank_scan_tests.cpp
index 7f31bc9089f..f2a50248b4a 100644
--- a/cpp/tests/groupby/rank_scan_tests.cpp
+++ b/cpp/tests/groupby/rank_scan_tests.cpp
@@ -22,8 +22,6 @@
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/detail/aggregation/aggregation.hpp>
-
 using namespace cudf::test::iterators;
 
 template <typename T>
diff --git a/cpp/tests/groupby/shift_tests.cpp b/cpp/tests/groupby/shift_tests.cpp
index 14c9ceb4508..49f9d7cb10a 100644
--- a/cpp/tests/groupby/shift_tests.cpp
+++ b/cpp/tests/groupby/shift_tests.cpp
@@ -21,7 +21,6 @@
 
 #include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/groupby.hpp>
-#include <cudf/scalar/scalar.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
 
 template <typename T>
diff --git a/cpp/tests/hashing/md5_test.cpp b/cpp/tests/hashing/md5_test.cpp
index 69e518cbf8d..b54adb52496 100644
--- a/cpp/tests/hashing/md5_test.cpp
+++ b/cpp/tests/hashing/md5_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/hashing.hpp>
diff --git a/cpp/tests/hashing/murmurhash3_x86_32_test.cpp b/cpp/tests/hashing/murmurhash3_x86_32_test.cpp
index c1a6e6ff6e1..b4622f5eb81 100644
--- a/cpp/tests/hashing/murmurhash3_x86_32_test.cpp
+++ b/cpp/tests/hashing/murmurhash3_x86_32_test.cpp
@@ -17,11 +17,9 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/detail/iterator.cuh>
 #include <cudf/hashing.hpp>
 
 constexpr cudf::test::debug_output_level verbosity{cudf::test::debug_output_level::ALL_ERRORS};
diff --git a/cpp/tests/hashing/sha1_test.cpp b/cpp/tests/hashing/sha1_test.cpp
index e28e71442a6..1e86751bb4c 100644
--- a/cpp/tests/hashing/sha1_test.cpp
+++ b/cpp/tests/hashing/sha1_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/hashing.hpp>
diff --git a/cpp/tests/hashing/sha224_test.cpp b/cpp/tests/hashing/sha224_test.cpp
index 61b584f94df..259e7102ee2 100644
--- a/cpp/tests/hashing/sha224_test.cpp
+++ b/cpp/tests/hashing/sha224_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/hashing.hpp>
diff --git a/cpp/tests/hashing/sha256_test.cpp b/cpp/tests/hashing/sha256_test.cpp
index 8bc47c92c6b..a4affc87874 100644
--- a/cpp/tests/hashing/sha256_test.cpp
+++ b/cpp/tests/hashing/sha256_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/hashing.hpp>
diff --git a/cpp/tests/hashing/sha384_test.cpp b/cpp/tests/hashing/sha384_test.cpp
index 4c79934f98d..8a5c090eeea 100644
--- a/cpp/tests/hashing/sha384_test.cpp
+++ b/cpp/tests/hashing/sha384_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/hashing.hpp>
diff --git a/cpp/tests/hashing/sha512_test.cpp b/cpp/tests/hashing/sha512_test.cpp
index 0eb1c60b8fc..77fc56b5f13 100644
--- a/cpp/tests/hashing/sha512_test.cpp
+++ b/cpp/tests/hashing/sha512_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/hashing.hpp>
diff --git a/cpp/tests/hashing/xxhash_64_test.cpp b/cpp/tests/hashing/xxhash_64_test.cpp
index ab4ed829681..d8694a72d94 100644
--- a/cpp/tests/hashing/xxhash_64_test.cpp
+++ b/cpp/tests/hashing/xxhash_64_test.cpp
@@ -17,11 +17,8 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/detail/iterator.cuh>
-#include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/hashing.hpp>
 
 using NumericTypesNoBools =
diff --git a/cpp/tests/interop/from_arrow_device_test.cpp b/cpp/tests/interop/from_arrow_device_test.cpp
index 2151ec6e22f..1ddc33e749a 100644
--- a/cpp/tests/interop/from_arrow_device_test.cpp
+++ b/cpp/tests/interop/from_arrow_device_test.cpp
@@ -17,17 +17,13 @@
 #include "nanoarrow_utils.hpp"
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
-#include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
 #include <cudf/column/column_view.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/detail/copy.hpp>
-#include <cudf/detail/get_value.cuh>
 #include <cudf/detail/interop.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/dictionary/dictionary_column_view.hpp>
diff --git a/cpp/tests/interop/from_arrow_host_test.cpp b/cpp/tests/interop/from_arrow_host_test.cpp
index ef9936b214c..d93ef28aab8 100644
--- a/cpp/tests/interop/from_arrow_host_test.cpp
+++ b/cpp/tests/interop/from_arrow_host_test.cpp
@@ -20,7 +20,6 @@
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
-#include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
@@ -28,7 +27,6 @@
 #include <cudf/copying.hpp>
 #include <cudf/dictionary/dictionary_column_view.hpp>
 #include <cudf/dictionary/dictionary_factories.hpp>
-#include <cudf/dictionary/encode.hpp>
 #include <cudf/interop.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
diff --git a/cpp/tests/interop/from_arrow_stream_test.cpp b/cpp/tests/interop/from_arrow_stream_test.cpp
index 80a2e4b2ffd..3916025bf22 100644
--- a/cpp/tests/interop/from_arrow_stream_test.cpp
+++ b/cpp/tests/interop/from_arrow_stream_test.cpp
@@ -17,27 +17,14 @@
 #include "nanoarrow_utils.hpp"
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
-#include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
-#include <cudf_test/testing_main.hpp>
-#include <cudf_test/type_lists.hpp>
 
-#include <cudf/column/column.hpp>
-#include <cudf/column/column_view.hpp>
 #include <cudf/concatenate.hpp>
-#include <cudf/copying.hpp>
-#include <cudf/dictionary/dictionary_column_view.hpp>
-#include <cudf/dictionary/dictionary_factories.hpp>
-#include <cudf/dictionary/encode.hpp>
 #include <cudf/interop.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
-#include <cudf/types.hpp>
 #include <cudf/utilities/type_checks.hpp>
 
-#include <thrust/iterator/counting_iterator.h>
-
 struct VectorOfArrays {
   std::vector<nanoarrow::UniqueArray> arrays;
   nanoarrow::UniqueSchema schema;
diff --git a/cpp/tests/interop/from_arrow_test.cpp b/cpp/tests/interop/from_arrow_test.cpp
index 6e742b9e4cf..18efae75cb1 100644
--- a/cpp/tests/interop/from_arrow_test.cpp
+++ b/cpp/tests/interop/from_arrow_test.cpp
@@ -25,9 +25,7 @@
 #include <cudf/column/column.hpp>
 #include <cudf/column/column_view.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/detail/copy.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/dictionary/dictionary_column_view.hpp>
 #include <cudf/dictionary/encode.hpp>
 #include <cudf/interop.hpp>
 #include <cudf/table/table.hpp>
@@ -37,8 +35,6 @@
 #include <thrust/iterator/counting_iterator.h>
 
 #include <arrow/c/bridge.h>
-#include <nanoarrow/nanoarrow.h>
-#include <nanoarrow/nanoarrow_device.h>
 
 std::unique_ptr<cudf::table> get_cudf_table()
 {
diff --git a/cpp/tests/interop/to_arrow_device_test.cpp b/cpp/tests/interop/to_arrow_device_test.cpp
index 7ba586461dc..29aa928c277 100644
--- a/cpp/tests/interop/to_arrow_device_test.cpp
+++ b/cpp/tests/interop/to_arrow_device_test.cpp
@@ -17,21 +17,15 @@
 #include "nanoarrow_utils.hpp"
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/table_utilities.hpp>
-#include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
-#include <cudf/copying.hpp>
-#include <cudf/detail/copy.hpp>
 #include <cudf/detail/interop.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/dictionary/dictionary_column_view.hpp>
 #include <cudf/dictionary/encode.hpp>
 #include <cudf/interop.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/types.hpp>
 
diff --git a/cpp/tests/interop/to_arrow_host_test.cpp b/cpp/tests/interop/to_arrow_host_test.cpp
index fcb4433b42e..fa3aa82fee2 100644
--- a/cpp/tests/interop/to_arrow_host_test.cpp
+++ b/cpp/tests/interop/to_arrow_host_test.cpp
@@ -17,20 +17,14 @@
 #include "nanoarrow_utils.hpp"
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/table_utilities.hpp>
-#include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
 #include <cudf/column/column_view.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/detail/copy.hpp>
 #include <cudf/detail/interop.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/dictionary/dictionary_column_view.hpp>
-#include <cudf/dictionary/encode.hpp>
 #include <cudf/interop.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
diff --git a/cpp/tests/interop/to_arrow_test.cpp b/cpp/tests/interop/to_arrow_test.cpp
index a6aa4b22eca..86295d8efb1 100644
--- a/cpp/tests/interop/to_arrow_test.cpp
+++ b/cpp/tests/interop/to_arrow_test.cpp
@@ -19,14 +19,12 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
 #include <cudf/column/column_view.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/detail/copy.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/dictionary/dictionary_column_view.hpp>
 #include <cudf/dictionary/encode.hpp>
diff --git a/cpp/tests/io/csv_test.cpp b/cpp/tests/io/csv_test.cpp
index b265dcf9273..cc1e367d114 100644
--- a/cpp/tests/io/csv_test.cpp
+++ b/cpp/tests/io/csv_test.cpp
@@ -17,14 +17,12 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/random.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/detail/iterator.cuh>
-#include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/io/csv.hpp>
 #include <cudf/io/datasource.hpp>
 #include <cudf/strings/convert/convert_datetime.hpp>
@@ -32,18 +30,12 @@
 #include <cudf/strings/strings_column_view.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
-#include <cudf/unary.hpp>
 
-#include <thrust/copy.h>
 #include <thrust/execution_policy.h>
-#include <thrust/find.h>
 #include <thrust/iterator/counting_iterator.h>
 
-#include <arrow/io/api.h>
-
 #include <algorithm>
 #include <fstream>
-#include <iostream>
 #include <iterator>
 #include <limits>
 #include <numeric>
diff --git a/cpp/tests/io/file_io_test.cpp b/cpp/tests/io/file_io_test.cpp
index 3c41f21b0a4..1b85541687a 100644
--- a/cpp/tests/io/file_io_test.cpp
+++ b/cpp/tests/io/file_io_test.cpp
@@ -15,13 +15,10 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 
 #include <src/io/utilities/file_io_utilities.hpp>
 
-#include <type_traits>
-
 // Base test fixture for tests
 struct CuFileIOTest : public cudf::test::BaseFixture {};
 
diff --git a/cpp/tests/io/json/json_quote_normalization_test.cpp b/cpp/tests/io/json/json_quote_normalization_test.cpp
index d23acf3ae00..c8c2d18903f 100644
--- a/cpp/tests/io/json/json_quote_normalization_test.cpp
+++ b/cpp/tests/io/json/json_quote_normalization_test.cpp
@@ -20,7 +20,6 @@
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
 
-#include <cudf/detail/utilities/vector_factories.hpp>
 #include <cudf/io/datasource.hpp>
 #include <cudf/io/detail/json.hpp>
 #include <cudf/io/json.hpp>
@@ -29,7 +28,6 @@
 
 #include <rmm/device_buffer.hpp>
 #include <rmm/mr/device/cuda_memory_resource.hpp>
-#include <rmm/mr/device/device_memory_resource.hpp>
 
 #include <string>
 
diff --git a/cpp/tests/io/json/json_test.cpp b/cpp/tests/io/json/json_test.cpp
index cb6716f4a18..5f070bd53b9 100644
--- a/cpp/tests/io/json/json_test.cpp
+++ b/cpp/tests/io/json/json_test.cpp
@@ -39,8 +39,6 @@
 
 #include <thrust/iterator/constant_iterator.h>
 
-#include <arrow/io/api.h>
-
 #include <fstream>
 #include <limits>
 #include <memory>
diff --git a/cpp/tests/io/json/json_tree.cpp b/cpp/tests/io/json/json_tree.cpp
index 15682c6ae6b..887d4fa783f 100644
--- a/cpp/tests/io/json/json_tree.cpp
+++ b/cpp/tests/io/json/json_tree.cpp
@@ -15,12 +15,8 @@
  */
 
 #include "io/json/nested_json.hpp"
-#include "io/utilities/hostdevice_vector.hpp"
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
-#include <cudf_test/cudf_gtest.hpp>
-#include <cudf_test/random.hpp>
 
 #include <cudf/detail/utilities/vector_factories.hpp>
 #include <cudf/hashing/detail/hashing.hpp>
@@ -29,9 +25,9 @@
 #include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/span.hpp>
 
-#include <rmm/cuda_stream.hpp>
 #include <rmm/cuda_stream_view.hpp>
 
+#include <numeric>
 #include <stack>
 #include <string>
 #include <unordered_map>
diff --git a/cpp/tests/io/json/nested_json_test.cpp b/cpp/tests/io/json/nested_json_test.cpp
index f32aba0e632..e0e955c4f48 100644
--- a/cpp/tests/io/json/nested_json_test.cpp
+++ b/cpp/tests/io/json/nested_json_test.cpp
@@ -21,24 +21,16 @@
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/cudf_gtest.hpp>
-#include <cudf_test/io_metadata_utilities.hpp>
 #include <cudf_test/random.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
 
-#include <cudf/io/datasource.hpp>
 #include <cudf/io/json.hpp>
-#include <cudf/io/parquet.hpp>
 #include <cudf/io/types.hpp>
-#include <cudf/lists/lists_column_view.hpp>
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 #include <cudf/utilities/span.hpp>
 
-#include <rmm/exec_policy.hpp>
-
-#include <thrust/copy.h>
 #include <thrust/iterator/zip_iterator.h>
 
 #include <string>
diff --git a/cpp/tests/io/orc_test.cpp b/cpp/tests/io/orc_test.cpp
index cce0adbf317..fce99187516 100644
--- a/cpp/tests/io/orc_test.cpp
+++ b/cpp/tests/io/orc_test.cpp
@@ -31,7 +31,6 @@
 #include <cudf/io/data_sink.hpp>
 #include <cudf/io/orc.hpp>
 #include <cudf/io/orc_metadata.hpp>
-#include <cudf/strings/strings_column_view.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/utilities/span.hpp>
diff --git a/cpp/tests/io/parquet_common.hpp b/cpp/tests/io/parquet_common.hpp
index c90b81ed27a..d66aa3bde9d 100644
--- a/cpp/tests/io/parquet_common.hpp
+++ b/cpp/tests/io/parquet_common.hpp
@@ -22,13 +22,11 @@
 
 #include <cudf/column/column.hpp>
 #include <cudf/io/datasource.hpp>
-#include <cudf/io/parquet_metadata.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 
 #include <src/io/parquet/compact_protocol_reader.hpp>
 #include <src/io/parquet/parquet.hpp>
-#include <src/io/parquet/parquet_gpu.hpp>
 
 #include <random>
 #include <type_traits>
diff --git a/cpp/tests/io/parquet_misc_test.cpp b/cpp/tests/io/parquet_misc_test.cpp
index f1286a00d22..d66f685cd9c 100644
--- a/cpp/tests/io/parquet_misc_test.cpp
+++ b/cpp/tests/io/parquet_misc_test.cpp
@@ -20,8 +20,6 @@
 #include <cudf_test/table_utilities.hpp>
 
 #include <cudf/io/parquet.hpp>
-#include <cudf/stream_compaction.hpp>
-#include <cudf/transform.hpp>
 
 #include <array>
 
diff --git a/cpp/tests/io/parquet_reader_test.cpp b/cpp/tests/io/parquet_reader_test.cpp
index 7986a3c6d70..177e6163d4f 100644
--- a/cpp/tests/io/parquet_reader_test.cpp
+++ b/cpp/tests/io/parquet_reader_test.cpp
@@ -29,6 +29,8 @@
 #include <cudf/table/table_view.hpp>
 #include <cudf/transform.hpp>
 
+#include <src/io/parquet/parquet_gpu.hpp>
+
 #include <array>
 
 TEST_F(ParquetReaderTest, UserBounds)
diff --git a/cpp/tests/io/parquet_test.cpp b/cpp/tests/io/parquet_test.cpp
index be2ecd56424..5c3c8342cd2 100644
--- a/cpp/tests/io/parquet_test.cpp
+++ b/cpp/tests/io/parquet_test.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <cudf_test/base_fixture.hpp>
 #include <cudf_test/testing_main.hpp>
 
 // NOTE: this file exists to define the parquet test's `main()` function.
diff --git a/cpp/tests/io/row_selection_test.cpp b/cpp/tests/io/row_selection_test.cpp
index ebadd870091..c40d3bbd299 100644
--- a/cpp/tests/io/row_selection_test.cpp
+++ b/cpp/tests/io/row_selection_test.cpp
@@ -15,7 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 
 #include <src/io/utilities/row_selection.hpp>
diff --git a/cpp/tests/io/text/data_chunk_source_test.cpp b/cpp/tests/io/text/data_chunk_source_test.cpp
index 6f46df20633..79ce908f3e0 100644
--- a/cpp/tests/io/text/data_chunk_source_test.cpp
+++ b/cpp/tests/io/text/data_chunk_source_test.cpp
@@ -15,14 +15,11 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 
 #include <cudf/io/text/data_chunk_source_factories.hpp>
 #include <cudf/io/text/detail/bgzip_utils.hpp>
 
-#include <rmm/cuda_stream_view.hpp>
-
 #include <fstream>
 #include <random>
 
diff --git a/cpp/tests/io/text/multibyte_split_test.cpp b/cpp/tests/io/text/multibyte_split_test.cpp
index 74d08061df9..60244462e2c 100644
--- a/cpp/tests/io/text/multibyte_split_test.cpp
+++ b/cpp/tests/io/text/multibyte_split_test.cpp
@@ -19,16 +19,12 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/concatenate.hpp>
 #include <cudf/io/text/byte_range_info.hpp>
 #include <cudf/io/text/data_chunk_source_factories.hpp>
 #include <cudf/io/text/multibyte_split.hpp>
-#include <cudf/strings/strings_column_view.hpp>
 #include <cudf/utilities/default_stream.hpp>
 
 using cudf::test::strings_column_wrapper;
diff --git a/cpp/tests/iterator/value_iterator.cpp b/cpp/tests/iterator/value_iterator.cpp
index 22bc7475dbe..f7f7c0f2721 100644
--- a/cpp/tests/iterator/value_iterator.cpp
+++ b/cpp/tests/iterator/value_iterator.cpp
@@ -13,7 +13,6 @@
  * the License.
  */
 
-#include <cudf_test/base_fixture.hpp>
 #include <cudf_test/testing_main.hpp>
 
 CUDF_TEST_PROGRAM_MAIN()
diff --git a/cpp/tests/jit/parse_ptx_function.cpp b/cpp/tests/jit/parse_ptx_function.cpp
index 6f9dfd06730..c9bb691907a 100644
--- a/cpp/tests/jit/parse_ptx_function.cpp
+++ b/cpp/tests/jit/parse_ptx_function.cpp
@@ -16,7 +16,6 @@
 
 #include "jit/parser.hpp"
 
-#include <cudf_test/base_fixture.hpp>
 #include <cudf_test/testing_main.hpp>
 
 #include <algorithm>
diff --git a/cpp/tests/join/cross_join_tests.cpp b/cpp/tests/join/cross_join_tests.cpp
index d87f5e54153..971913443e5 100644
--- a/cpp/tests/join/cross_join_tests.cpp
+++ b/cpp/tests/join/cross_join_tests.cpp
@@ -15,7 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
diff --git a/cpp/tests/join/distinct_join_tests.cpp b/cpp/tests/join/distinct_join_tests.cpp
index 178edc52dd3..9070efa38fe 100644
--- a/cpp/tests/join/distinct_join_tests.cpp
+++ b/cpp/tests/join/distinct_join_tests.cpp
@@ -15,12 +15,8 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
-#include <cudf_test/testing_main.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
 #include <cudf/filling.hpp>
@@ -31,7 +27,6 @@
 #include <cudf/types.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 
-#include <limits>
 #include <vector>
 
 template <typename T>
diff --git a/cpp/tests/join/join_tests.cpp b/cpp/tests/join/join_tests.cpp
index 3431e941359..6a8a54c8465 100644
--- a/cpp/tests/join/join_tests.cpp
+++ b/cpp/tests/join/join_tests.cpp
@@ -20,17 +20,12 @@
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
-#include <cudf/column/column_factories.hpp>
 #include <cudf/column/column_view.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/detail/null_mask.hpp>
-#include <cudf/detail/structs/utilities.hpp>
 #include <cudf/dictionary/encode.hpp>
 #include <cudf/join.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/sorting.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
diff --git a/cpp/tests/join/semi_anti_join_tests.cpp b/cpp/tests/join/semi_anti_join_tests.cpp
index 554d5754e39..ddc65c3f379 100644
--- a/cpp/tests/join/semi_anti_join_tests.cpp
+++ b/cpp/tests/join/semi_anti_join_tests.cpp
@@ -22,7 +22,6 @@
 
 #include <cudf/column/column.hpp>
 #include <cudf/column/column_view.hpp>
-#include <cudf/dictionary/encode.hpp>
 #include <cudf/join.hpp>
 #include <cudf/sorting.hpp>
 #include <cudf/table/table.hpp>
diff --git a/cpp/tests/json/json_tests.cpp b/cpp/tests/json/json_tests.cpp
index 42a574ac5c0..53166e04173 100644
--- a/cpp/tests/json/json_tests.cpp
+++ b/cpp/tests/json/json_tests.cpp
@@ -19,7 +19,6 @@
 #include <cudf_test/testing_main.hpp>
 
 #include <cudf/json/json.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/strings/replace.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 
diff --git a/cpp/tests/large_strings/large_strings_fixture.cpp b/cpp/tests/large_strings/large_strings_fixture.cpp
index 7b61be113f9..f1404990354 100644
--- a/cpp/tests/large_strings/large_strings_fixture.cpp
+++ b/cpp/tests/large_strings/large_strings_fixture.cpp
@@ -16,12 +16,10 @@
 
 #include "large_strings_fixture.hpp"
 
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/testing_main.hpp>
 
 #include <cudf/column/column.hpp>
-#include <cudf/strings/combine.hpp>
 #include <cudf/strings/repeat_strings.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 
diff --git a/cpp/tests/large_strings/parquet_tests.cpp b/cpp/tests/large_strings/parquet_tests.cpp
index 007c08ce0fb..f47782a2d02 100644
--- a/cpp/tests/large_strings/parquet_tests.cpp
+++ b/cpp/tests/large_strings/parquet_tests.cpp
@@ -16,8 +16,6 @@
 
 #include "large_strings_fixture.hpp"
 
-#include <cudf_test/column_utilities.hpp>
-#include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
 
 #include <cudf/io/parquet.hpp>
diff --git a/cpp/tests/lists/contains_tests.cpp b/cpp/tests/lists/contains_tests.cpp
index 8fb2b403051..7ae7a6a7414 100644
--- a/cpp/tests/lists/contains_tests.cpp
+++ b/cpp/tests/lists/contains_tests.cpp
@@ -22,7 +22,6 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_factories.hpp>
-#include <cudf/detail/copy.hpp>
 #include <cudf/lists/contains.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
 
diff --git a/cpp/tests/lists/extract_tests.cpp b/cpp/tests/lists/extract_tests.cpp
index 92dd5df5ec7..2c24f695c29 100644
--- a/cpp/tests/lists/extract_tests.cpp
+++ b/cpp/tests/lists/extract_tests.cpp
@@ -21,12 +21,8 @@
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/column/column_factories.hpp>
-#include <cudf/detail/null_mask.hpp>
 #include <cudf/lists/extract.hpp>
 
-#include <rmm/cuda_stream_view.hpp>
-
 #include <thrust/iterator/constant_iterator.h>
 #include <thrust/iterator/counting_iterator.h>
 #include <thrust/iterator/transform_iterator.h>
diff --git a/cpp/tests/lists/sequences_tests.cpp b/cpp/tests/lists/sequences_tests.cpp
index 74545903eb3..dcb906cd2ef 100644
--- a/cpp/tests/lists/sequences_tests.cpp
+++ b/cpp/tests/lists/sequences_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/lists/stream_compaction/apply_boolean_mask_tests.cpp b/cpp/tests/lists/stream_compaction/apply_boolean_mask_tests.cpp
index 5625b47e7ea..18aa118bb81 100644
--- a/cpp/tests/lists/stream_compaction/apply_boolean_mask_tests.cpp
+++ b/cpp/tests/lists/stream_compaction/apply_boolean_mask_tests.cpp
@@ -20,8 +20,6 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_factories.hpp>
-#include <cudf/detail/null_mask.hpp>
-#include <cudf/lists/extract.hpp>
 #include <cudf/lists/stream_compaction.hpp>
 
 namespace cudf::test {
diff --git a/cpp/tests/merge/merge_dictionary_test.cpp b/cpp/tests/merge/merge_dictionary_test.cpp
index dd528c19e4e..1d7a31fd797 100644
--- a/cpp/tests/merge/merge_dictionary_test.cpp
+++ b/cpp/tests/merge/merge_dictionary_test.cpp
@@ -17,9 +17,7 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 
-#include <cudf/dictionary/dictionary_column_view.hpp>
 #include <cudf/dictionary/encode.hpp>
 #include <cudf/merge.hpp>
 #include <cudf/table/table.hpp>
diff --git a/cpp/tests/merge/merge_string_test.cpp b/cpp/tests/merge/merge_string_test.cpp
index bea044496b3..d9fdb6099f0 100644
--- a/cpp/tests/merge/merge_string_test.cpp
+++ b/cpp/tests/merge/merge_string_test.cpp
@@ -17,10 +17,8 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/column/column_factories.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/merge.hpp>
 #include <cudf/table/table.hpp>
@@ -30,10 +28,6 @@
 
 #include <gtest/gtest.h>
 
-#include <algorithm>
-#include <cassert>
-#include <initializer_list>
-#include <limits>
 #include <memory>
 #include <vector>
 
diff --git a/cpp/tests/merge/merge_test.cpp b/cpp/tests/merge/merge_test.cpp
index 6208d395f0a..fad390105d7 100644
--- a/cpp/tests/merge/merge_test.cpp
+++ b/cpp/tests/merge/merge_test.cpp
@@ -21,7 +21,6 @@
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
-#include <cudf_test/type_list_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_factories.hpp>
@@ -34,7 +33,6 @@
 #include <cudf/utilities/type_dispatcher.hpp>
 
 #include <thrust/iterator/counting_iterator.h>
-#include <thrust/merge.h>
 
 #include <vector>
 
diff --git a/cpp/tests/partitioning/round_robin_test.cpp b/cpp/tests/partitioning/round_robin_test.cpp
index 89d23c39dca..3693cfbcc72 100644
--- a/cpp/tests/partitioning/round_robin_test.cpp
+++ b/cpp/tests/partitioning/round_robin_test.cpp
@@ -17,10 +17,8 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/column/column_factories.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/partitioning.hpp>
 #include <cudf/table/table.hpp>
@@ -30,12 +28,7 @@
 
 #include <gtest/gtest.h>
 
-#include <algorithm>
-#include <cassert>
-#include <initializer_list>
-#include <limits>
 #include <memory>
-#include <numeric>
 #include <vector>
 
 using cudf::test::fixed_width_column_wrapper;
diff --git a/cpp/tests/quantiles/quantile_test.cpp b/cpp/tests/quantiles/quantile_test.cpp
index 6e88365b6e8..23b58618fe1 100644
--- a/cpp/tests/quantiles/quantile_test.cpp
+++ b/cpp/tests/quantiles/quantile_test.cpp
@@ -22,7 +22,6 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/quantiles.hpp>
-#include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
 #include <limits>
diff --git a/cpp/tests/quantiles/quantiles_test.cpp b/cpp/tests/quantiles/quantiles_test.cpp
index 44d4ec61852..c7e11af8c85 100644
--- a/cpp/tests/quantiles/quantiles_test.cpp
+++ b/cpp/tests/quantiles/quantiles_test.cpp
@@ -16,7 +16,6 @@
 
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/reductions/ewm_tests.cpp b/cpp/tests/reductions/ewm_tests.cpp
index 09cec688509..1117b0d1acf 100644
--- a/cpp/tests/reductions/ewm_tests.cpp
+++ b/cpp/tests/reductions/ewm_tests.cpp
@@ -18,9 +18,7 @@
 
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/reduction.hpp>
 
 template <typename T>
diff --git a/cpp/tests/reductions/list_rank_test.cpp b/cpp/tests/reductions/list_rank_test.cpp
index f5470f7d881..736b5081d8f 100644
--- a/cpp/tests/reductions/list_rank_test.cpp
+++ b/cpp/tests/reductions/list_rank_test.cpp
@@ -14,14 +14,9 @@
  * limitations under the License.
  */
 
-#include <benchmarks/common/generate_input.hpp>
-
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 
-#include <cudf/detail/aggregation/aggregation.hpp>
-#include <cudf/filling.hpp>
 #include <cudf/reduction.hpp>
 
 struct ListRankScanTest : public cudf::test::BaseFixture {
diff --git a/cpp/tests/reductions/rank_tests.cpp b/cpp/tests/reductions/rank_tests.cpp
index 3ab1fc01eaa..19633211192 100644
--- a/cpp/tests/reductions/rank_tests.cpp
+++ b/cpp/tests/reductions/rank_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,6 @@
 #include <cudf_test/iterator_utilities.hpp>
 
 #include <cudf/aggregation.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/reduction.hpp>
 #include <cudf/types.hpp>
 
diff --git a/cpp/tests/reductions/reduction_tests.cpp b/cpp/tests/reductions/reduction_tests.cpp
index bdb98372836..c09cde8f9e4 100644
--- a/cpp/tests/reductions/reduction_tests.cpp
+++ b/cpp/tests/reductions/reduction_tests.cpp
@@ -22,9 +22,7 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/dictionary/encode.hpp>
 #include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/reduction.hpp>
 #include <cudf/scalar/scalar.hpp>
@@ -33,11 +31,9 @@
 #include <cudf/types.hpp>
 #include <cudf/wrappers/timestamps.hpp>
 
-#include <thrust/copy.h>
 #include <thrust/iterator/counting_iterator.h>
 
 #include <algorithm>
-#include <iostream>
 #include <iterator>
 #include <vector>
 
diff --git a/cpp/tests/reductions/scan_tests.cpp b/cpp/tests/reductions/scan_tests.cpp
index c4463d68a68..72d92c5ac53 100644
--- a/cpp/tests/reductions/scan_tests.cpp
+++ b/cpp/tests/reductions/scan_tests.cpp
@@ -20,13 +20,11 @@
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/detail/utilities/device_operators.cuh>
 #include <cudf/reduction.hpp>
 
 #include <thrust/host_vector.h>
-#include <thrust/iterator/zip_iterator.h>
 #include <thrust/tuple.h>
 
 #include <algorithm>
diff --git a/cpp/tests/reductions/scan_tests.hpp b/cpp/tests/reductions/scan_tests.hpp
index 858697d8ef5..c2cce4bbbfa 100644
--- a/cpp/tests/reductions/scan_tests.hpp
+++ b/cpp/tests/reductions/scan_tests.hpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2022, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +20,7 @@
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/column/column.hpp>
 #include <cudf/fixed_point/fixed_point.hpp>
-#include <cudf/strings/string_view.hpp>
 #include <cudf/utilities/span.hpp>
 #include <cudf/utilities/traits.hpp>
 
@@ -30,7 +28,6 @@
 
 #include <initializer_list>
 #include <type_traits>
-#include <vector>
 
 template <typename T>
 struct TypeParam_to_host_type {
diff --git a/cpp/tests/replace/clamp_test.cpp b/cpp/tests/replace/clamp_test.cpp
index 239c9ce6ddd..e972ea35ed0 100644
--- a/cpp/tests/replace/clamp_test.cpp
+++ b/cpp/tests/replace/clamp_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/replace/normalize_replace_tests.cpp b/cpp/tests/replace/normalize_replace_tests.cpp
index 2de17388ee8..c35f385329a 100644
--- a/cpp/tests/replace/normalize_replace_tests.cpp
+++ b/cpp/tests/replace/normalize_replace_tests.cpp
@@ -19,7 +19,6 @@
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/testing_main.hpp>
 
-#include <cudf/column/column_factories.hpp>
 #include <cudf/replace.hpp>
 
 // This is the main test fixture
diff --git a/cpp/tests/replace/replace_nans_tests.cpp b/cpp/tests/replace/replace_nans_tests.cpp
index 35232204db7..1b9fe92066a 100644
--- a/cpp/tests/replace/replace_nans_tests.cpp
+++ b/cpp/tests/replace/replace_nans_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/replace/replace_nulls_tests.cpp b/cpp/tests/replace/replace_nulls_tests.cpp
index fcee27305f2..0c8ccea52a6 100644
--- a/cpp/tests/replace/replace_nulls_tests.cpp
+++ b/cpp/tests/replace/replace_nulls_tests.cpp
@@ -20,13 +20,11 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/dictionary/encode.hpp>
-#include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/replace.hpp>
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
diff --git a/cpp/tests/replace/replace_tests.cpp b/cpp/tests/replace/replace_tests.cpp
index b12bf08520f..ae4041bcfaf 100644
--- a/cpp/tests/replace/replace_tests.cpp
+++ b/cpp/tests/replace/replace_tests.cpp
@@ -20,20 +20,16 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/detail/iterator.cuh>
 #include <cudf/dictionary/encode.hpp>
-#include <cudf/fixed_point/fixed_point.hpp>
-#include <cudf/null_mask.hpp>
 #include <cudf/replace.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
 
 #include <thrust/host_vector.h>
-#include <thrust/iterator/transform_iterator.h>
 
 #include <gtest/gtest.h>
 
diff --git a/cpp/tests/reshape/byte_cast_tests.cpp b/cpp/tests/reshape/byte_cast_tests.cpp
index b3d9b2e2f5f..59585c0e947 100644
--- a/cpp/tests/reshape/byte_cast_tests.cpp
+++ b/cpp/tests/reshape/byte_cast_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/detail/iterator.cuh>
 #include <cudf/reshape.hpp>
diff --git a/cpp/tests/reshape/tile_tests.cpp b/cpp/tests/reshape/tile_tests.cpp
index ed76b9d2ea5..25cfc5c5108 100644
--- a/cpp/tests/reshape/tile_tests.cpp
+++ b/cpp/tests/reshape/tile_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2020-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,7 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
diff --git a/cpp/tests/rolling/collect_ops_test.cpp b/cpp/tests/rolling/collect_ops_test.cpp
index 165e0347785..e8a36d9ab48 100644
--- a/cpp/tests/rolling/collect_ops_test.cpp
+++ b/cpp/tests/rolling/collect_ops_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/rolling/empty_input_test.cpp b/cpp/tests/rolling/empty_input_test.cpp
index e7d1e3f0b10..2e1815671a9 100644
--- a/cpp/tests/rolling/empty_input_test.cpp
+++ b/cpp/tests/rolling/empty_input_test.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,9 +15,7 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/aggregation.hpp>
diff --git a/cpp/tests/rolling/grouped_rolling_range_test.cpp b/cpp/tests/rolling/grouped_rolling_range_test.cpp
index fcfbd0eee78..2cb9b60000b 100644
--- a/cpp/tests/rolling/grouped_rolling_range_test.cpp
+++ b/cpp/tests/rolling/grouped_rolling_range_test.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2022-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,21 +17,16 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/aggregation.hpp>
 #include <cudf/column/column.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
-#include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/null_mask.hpp>
 #include <cudf/rolling.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/table/table_view.hpp>
-#include <cudf/utilities/bit.hpp>
 
-#include <thrust/host_vector.h>
 #include <thrust/iterator/counting_iterator.h>
 
 #include <algorithm>
diff --git a/cpp/tests/rolling/grouped_rolling_test.cpp b/cpp/tests/rolling/grouped_rolling_test.cpp
index 78d5daf7e83..78b444bcd93 100644
--- a/cpp/tests/rolling/grouped_rolling_test.cpp
+++ b/cpp/tests/rolling/grouped_rolling_test.cpp
@@ -19,7 +19,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/rolling/lead_lag_test.cpp b/cpp/tests/rolling/lead_lag_test.cpp
index de057e96320..6519b0ed4ee 100644
--- a/cpp/tests/rolling/lead_lag_test.cpp
+++ b/cpp/tests/rolling/lead_lag_test.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2020-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,7 +16,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
@@ -26,7 +25,6 @@
 #include <cudf/dictionary/dictionary_factories.hpp>
 #include <cudf/rolling.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
-#include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
 
 #include <thrust/iterator/counting_iterator.h>
diff --git a/cpp/tests/rolling/nth_element_test.cpp b/cpp/tests/rolling/nth_element_test.cpp
index 2444992e68f..5f2b383ed55 100644
--- a/cpp/tests/rolling/nth_element_test.cpp
+++ b/cpp/tests/rolling/nth_element_test.cpp
@@ -17,22 +17,15 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/aggregation.hpp>
-#include <cudf/groupby.hpp>
-#include <cudf/null_mask.hpp>
 #include <cudf/rolling.hpp>
 
-#include <rmm/device_buffer.hpp>
-
 #include <thrust/iterator/counting_iterator.h>
 #include <thrust/iterator/transform_iterator.h>
 
-#include <gtest/gtest-typed-test.h>
-
 #include <memory>
 #include <optional>
 
diff --git a/cpp/tests/rolling/offset_row_window_test.cpp b/cpp/tests/rolling/offset_row_window_test.cpp
index 0eaab0c9f7a..dcaa47e722b 100644
--- a/cpp/tests/rolling/offset_row_window_test.cpp
+++ b/cpp/tests/rolling/offset_row_window_test.cpp
@@ -17,14 +17,10 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 
 #include <cudf/aggregation.hpp>
-#include <cudf/groupby.hpp>
-#include <cudf/lists/explode.hpp>
 #include <cudf/rolling.hpp>
-#include <cudf/utilities/default_stream.hpp>
 
 template <typename T>
 using fwcw = cudf::test::fixed_width_column_wrapper<T>;
diff --git a/cpp/tests/rolling/range_rolling_window_test.cpp b/cpp/tests/rolling/range_rolling_window_test.cpp
index 461c41025e9..daf5fcc1d96 100644
--- a/cpp/tests/rolling/range_rolling_window_test.cpp
+++ b/cpp/tests/rolling/range_rolling_window_test.cpp
@@ -17,22 +17,17 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/aggregation.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/rolling.hpp>
 #include <cudf/table/table_view.hpp>
-#include <cudf/unary.hpp>
-#include <cudf/utilities/bit.hpp>
 
 #include <thrust/iterator/constant_iterator.h>
 #include <thrust/iterator/counting_iterator.h>
 #include <thrust/iterator/transform_iterator.h>
 
 #include <src/rolling/detail/range_window_bounds.hpp>
-#include <src/rolling/detail/rolling.hpp>
 
 #include <utility>
 #include <vector>
diff --git a/cpp/tests/rolling/range_window_bounds_test.cpp b/cpp/tests/rolling/range_window_bounds_test.cpp
index b77451bf0bc..a67555280f4 100644
--- a/cpp/tests/rolling/range_window_bounds_test.cpp
+++ b/cpp/tests/rolling/range_window_bounds_test.cpp
@@ -15,9 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
-#include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/rolling/range_window_bounds.hpp>
@@ -25,8 +22,6 @@
 
 #include <src/rolling/detail/range_window_bounds.hpp>
 
-#include <vector>
-
 struct RangeWindowBoundsTest : public cudf::test::BaseFixture {};
 
 template <typename Timestamp>
diff --git a/cpp/tests/rolling/rolling_test.cpp b/cpp/tests/rolling/rolling_test.cpp
index 6e0dc16dca9..72a511fd5f1 100644
--- a/cpp/tests/rolling/rolling_test.cpp
+++ b/cpp/tests/rolling/rolling_test.cpp
@@ -19,7 +19,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/random.hpp>
 #include <cudf_test/testing_main.hpp>
@@ -30,7 +29,6 @@
 #include <cudf/detail/iterator.cuh>
 #include <cudf/dictionary/encode.hpp>
 #include <cudf/rolling.hpp>
-#include <cudf/unary.hpp>
 #include <cudf/utilities/bit.hpp>
 #include <cudf/utilities/traits.hpp>
 
diff --git a/cpp/tests/scalar/factories_test.cpp b/cpp/tests/scalar/factories_test.cpp
index 5f132f3ace9..26987ea1b7b 100644
--- a/cpp/tests/scalar/factories_test.cpp
+++ b/cpp/tests/scalar/factories_test.cpp
@@ -22,11 +22,8 @@
 
 #include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/types.hpp>
-#include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/type_dispatcher.hpp>
 
-#include <rmm/cuda_stream_view.hpp>
-
 class ScalarFactoryTest : public cudf::test::BaseFixture {};
 
 template <typename T>
diff --git a/cpp/tests/search/search_dictionary_test.cpp b/cpp/tests/search/search_dictionary_test.cpp
index 78f79ccc648..a3bb1dfda10 100644
--- a/cpp/tests/search/search_dictionary_test.cpp
+++ b/cpp/tests/search/search_dictionary_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/search.hpp>
 
diff --git a/cpp/tests/search/search_list_test.cpp b/cpp/tests/search/search_list_test.cpp
index 7584003e800..fb5d0fcc889 100644
--- a/cpp/tests/search/search_list_test.cpp
+++ b/cpp/tests/search/search_list_test.cpp
@@ -20,7 +20,6 @@
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/lists/lists_column_view.hpp>
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/search.hpp>
 #include <cudf/table/table_view.hpp>
diff --git a/cpp/tests/search/search_struct_test.cpp b/cpp/tests/search/search_struct_test.cpp
index c35d359e75c..05b9deb3463 100644
--- a/cpp/tests/search/search_struct_test.cpp
+++ b/cpp/tests/search/search_struct_test.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2021-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,6 @@
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/lists/lists_column_view.hpp>
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/search.hpp>
 #include <cudf/table/table_view.hpp>
diff --git a/cpp/tests/search/search_test.cpp b/cpp/tests/search/search_test.cpp
index 7550cc27161..8d750be5677 100644
--- a/cpp/tests/search/search_test.cpp
+++ b/cpp/tests/search/search_test.cpp
@@ -20,7 +20,6 @@
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/search.hpp>
 
 #include <thrust/iterator/transform_iterator.h>
diff --git a/cpp/tests/sort/is_sorted_tests.cpp b/cpp/tests/sort/is_sorted_tests.cpp
index 109095192f9..e3c9f8d349e 100644
--- a/cpp/tests/sort/is_sorted_tests.cpp
+++ b/cpp/tests/sort/is_sorted_tests.cpp
@@ -15,7 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
diff --git a/cpp/tests/sort/rank_test.cpp b/cpp/tests/sort/rank_test.cpp
index e08a2105aea..ded46cb1f31 100644
--- a/cpp/tests/sort/rank_test.cpp
+++ b/cpp/tests/sort/rank_test.cpp
@@ -18,10 +18,8 @@
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/copying.hpp>
 #include <cudf/sorting.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
diff --git a/cpp/tests/sort/sort_nested_types_tests.cpp b/cpp/tests/sort/sort_nested_types_tests.cpp
index 8ab23936ceb..ce4148a941e 100644
--- a/cpp/tests/sort/sort_nested_types_tests.cpp
+++ b/cpp/tests/sort/sort_nested_types_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023, NVIDIA CORPORATION.
+ * Copyright (c) 2023-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
 #include <cudf/sorting.hpp>
diff --git a/cpp/tests/sort/sort_test.cpp b/cpp/tests/sort/sort_test.cpp
index 6a35e977b46..e1505c7a474 100644
--- a/cpp/tests/sort/sort_test.cpp
+++ b/cpp/tests/sort/sort_test.cpp
@@ -28,7 +28,6 @@
 #include <cudf/types.hpp>
 
 #include <thrust/host_vector.h>
-#include <thrust/sort.h>
 
 #include <type_traits>
 #include <vector>
diff --git a/cpp/tests/sort/stable_sort_tests.cpp b/cpp/tests/sort/stable_sort_tests.cpp
index 655166e0d62..88de9d51523 100644
--- a/cpp/tests/sort/stable_sort_tests.cpp
+++ b/cpp/tests/sort/stable_sort_tests.cpp
@@ -25,9 +25,6 @@
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
-#include <thrust/host_vector.h>
-#include <thrust/sort.h>
-
 #include <type_traits>
 #include <vector>
 
diff --git a/cpp/tests/stream_compaction/apply_boolean_mask_tests.cpp b/cpp/tests/stream_compaction/apply_boolean_mask_tests.cpp
index 6c0582fb846..1204b019739 100644
--- a/cpp/tests/stream_compaction/apply_boolean_mask_tests.cpp
+++ b/cpp/tests/stream_compaction/apply_boolean_mask_tests.cpp
@@ -20,9 +20,7 @@
 #include <cudf_test/random.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
-#include <cudf_test/type_lists.hpp>
 
-#include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/detail/null_mask.hpp>
 #include <cudf/stream_compaction.hpp>
@@ -31,8 +29,6 @@
 #include <cudf/types.hpp>
 #include <cudf/utilities/default_stream.hpp>
 
-#include <thrust/copy.h>
-#include <thrust/execution_policy.h>
 #include <thrust/functional.h>
 
 struct ApplyBooleanMask : public cudf::test::BaseFixture {};
diff --git a/cpp/tests/stream_compaction/distinct_count_tests.cpp b/cpp/tests/stream_compaction/distinct_count_tests.cpp
index a2dab649961..ee1bb3ead92 100644
--- a/cpp/tests/stream_compaction/distinct_count_tests.cpp
+++ b/cpp/tests/stream_compaction/distinct_count_tests.cpp
@@ -15,16 +15,11 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/copying.hpp>
-#include <cudf/sorting.hpp>
 #include <cudf/stream_compaction.hpp>
-#include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
diff --git a/cpp/tests/stream_compaction/distinct_tests.cpp b/cpp/tests/stream_compaction/distinct_tests.cpp
index 14d7d8789ac..c618ff68cbb 100644
--- a/cpp/tests/stream_compaction/distinct_tests.cpp
+++ b/cpp/tests/stream_compaction/distinct_tests.cpp
@@ -15,7 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
@@ -27,8 +26,6 @@
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
-#include <cmath>
-
 auto constexpr null{0};  // null at current level
 auto constexpr XXX{0};   // null pushed down from parent level
 auto constexpr NaN          = std::numeric_limits<double>::quiet_NaN();
diff --git a/cpp/tests/stream_compaction/drop_nans_tests.cpp b/cpp/tests/stream_compaction/drop_nans_tests.cpp
index bf72da5c840..71321361564 100644
--- a/cpp/tests/stream_compaction/drop_nans_tests.cpp
+++ b/cpp/tests/stream_compaction/drop_nans_tests.cpp
@@ -15,12 +15,9 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
-#include <cudf_test/type_lists.hpp>
 
-#include <cudf/copying.hpp>
 #include <cudf/stream_compaction.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
diff --git a/cpp/tests/stream_compaction/drop_nulls_tests.cpp b/cpp/tests/stream_compaction/drop_nulls_tests.cpp
index dbac1d58195..d3b45c2323e 100644
--- a/cpp/tests/stream_compaction/drop_nulls_tests.cpp
+++ b/cpp/tests/stream_compaction/drop_nulls_tests.cpp
@@ -15,12 +15,10 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/copying.hpp>
 #include <cudf/stream_compaction.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
diff --git a/cpp/tests/stream_compaction/stable_distinct_tests.cpp b/cpp/tests/stream_compaction/stable_distinct_tests.cpp
index 6c6c53331d4..cc847da6340 100644
--- a/cpp/tests/stream_compaction/stable_distinct_tests.cpp
+++ b/cpp/tests/stream_compaction/stable_distinct_tests.cpp
@@ -15,20 +15,16 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
 
 #include <cudf/copying.hpp>
-#include <cudf/sorting.hpp>
 #include <cudf/stream_compaction.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
-#include <cmath>
-
 auto constexpr null{0};  // null at current level
 auto constexpr XXX{0};   // null pushed down from parent level
 auto constexpr NaN          = std::numeric_limits<double>::quiet_NaN();
diff --git a/cpp/tests/stream_compaction/unique_count_tests.cpp b/cpp/tests/stream_compaction/unique_count_tests.cpp
index 640d159fc4f..bad93e92712 100644
--- a/cpp/tests/stream_compaction/unique_count_tests.cpp
+++ b/cpp/tests/stream_compaction/unique_count_tests.cpp
@@ -15,16 +15,11 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/copying.hpp>
-#include <cudf/sorting.hpp>
 #include <cudf/stream_compaction.hpp>
-#include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
diff --git a/cpp/tests/stream_compaction/unique_tests.cpp b/cpp/tests/stream_compaction/unique_tests.cpp
index d5b6915b520..e2b32b898b3 100644
--- a/cpp/tests/stream_compaction/unique_tests.cpp
+++ b/cpp/tests/stream_compaction/unique_tests.cpp
@@ -15,22 +15,16 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
-#include <cudf/sorting.hpp>
 #include <cudf/stream_compaction.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
-#include <algorithm>
-#include <cmath>
-
 using cudf::nan_policy;
 using cudf::null_equality;
 using cudf::null_policy;
diff --git a/cpp/tests/streams/binaryop_test.cpp b/cpp/tests/streams/binaryop_test.cpp
index 2a7b52b1b6b..3dcc6f9e632 100644
--- a/cpp/tests/streams/binaryop_test.cpp
+++ b/cpp/tests/streams/binaryop_test.cpp
@@ -21,7 +21,6 @@
 #include <cudf_test/default_stream.hpp>
 
 #include <cudf/binaryop.hpp>
-#include <cudf/column/column_view.hpp>
 #include <cudf/scalar/scalar.hpp>
 
 class BinaryopTest : public cudf::test::BaseFixture {};
diff --git a/cpp/tests/streams/io/csv_test.cpp b/cpp/tests/streams/io/csv_test.cpp
index 42894a0ebcb..a74ee64f8de 100644
--- a/cpp/tests/streams/io/csv_test.cpp
+++ b/cpp/tests/streams/io/csv_test.cpp
@@ -17,13 +17,9 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/default_stream.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 
 #include <cudf/io/csv.hpp>
-#include <cudf/io/detail/csv.hpp>
-#include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
-#include <cudf/types.hpp>
 
 #include <string>
 #include <vector>
diff --git a/cpp/tests/streams/io/json_test.cpp b/cpp/tests/streams/io/json_test.cpp
index f98e685ed0c..d352c6c3b2a 100644
--- a/cpp/tests/streams/io/json_test.cpp
+++ b/cpp/tests/streams/io/json_test.cpp
@@ -19,9 +19,7 @@
 #include <cudf_test/default_stream.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 
-#include <cudf/io/detail/json.hpp>
 #include <cudf/io/json.hpp>
-#include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
diff --git a/cpp/tests/streams/io/multibyte_split_test.cpp b/cpp/tests/streams/io/multibyte_split_test.cpp
index b0eff1d3340..5bb17226029 100644
--- a/cpp/tests/streams/io/multibyte_split_test.cpp
+++ b/cpp/tests/streams/io/multibyte_split_test.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/default_stream.hpp>
 
-#include <cudf/io/text/byte_range_info.hpp>
 #include <cudf/io/text/data_chunk_source_factories.hpp>
 #include <cudf/io/text/multibyte_split.hpp>
 
diff --git a/cpp/tests/streams/io/orc_test.cpp b/cpp/tests/streams/io/orc_test.cpp
index cc43bf15b5d..10722557e6a 100644
--- a/cpp/tests/streams/io/orc_test.cpp
+++ b/cpp/tests/streams/io/orc_test.cpp
@@ -17,19 +17,11 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/default_stream.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 
-#include <cudf/io/detail/orc.hpp>
 #include <cudf/io/orc.hpp>
 #include <cudf/io/orc_metadata.hpp>
-#include <cudf/io/orc_types.hpp>
 #include <cudf/table/table.hpp>
-#include <cudf/table/table_view.hpp>
-#include <cudf/types.hpp>
 
-#include <iostream>
-#include <random>
-#include <sstream>
 #include <string>
 #include <vector>
 
diff --git a/cpp/tests/streams/io/parquet_test.cpp b/cpp/tests/streams/io/parquet_test.cpp
index 9d2dec2d697..18bb80e64af 100644
--- a/cpp/tests/streams/io/parquet_test.cpp
+++ b/cpp/tests/streams/io/parquet_test.cpp
@@ -17,13 +17,9 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/default_stream.hpp>
-#include <cudf_test/iterator_utilities.hpp>
 
-#include <cudf/io/detail/parquet.hpp>
 #include <cudf/io/parquet.hpp>
 #include <cudf/table/table.hpp>
-#include <cudf/table/table_view.hpp>
-#include <cudf/types.hpp>
 
 #include <string>
 #include <vector>
diff --git a/cpp/tests/streams/join_test.cpp b/cpp/tests/streams/join_test.cpp
index 2811bb676fa..27bd7e080c9 100644
--- a/cpp/tests/streams/join_test.cpp
+++ b/cpp/tests/streams/join_test.cpp
@@ -19,11 +19,9 @@
 #include <cudf_test/default_stream.hpp>
 
 #include <cudf/column/column.hpp>
-#include <cudf/column/column_view.hpp>
 #include <cudf/join.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/types.hpp>
-#include <cudf/utilities/memory_resource.hpp>
 
 #include <cstdint>
 #include <memory>
diff --git a/cpp/tests/streams/null_mask_test.cpp b/cpp/tests/streams/null_mask_test.cpp
index e96224003f4..ed37a72545f 100644
--- a/cpp/tests/streams/null_mask_test.cpp
+++ b/cpp/tests/streams/null_mask_test.cpp
@@ -14,15 +14,12 @@
  * limitations under the License.
  */
 
-#include <tests/binaryop/util/runtime_support.h>
-
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/default_stream.hpp>
 
 #include <cudf/column/column_view.hpp>
 #include <cudf/null_mask.hpp>
-#include <cudf/scalar/scalar.hpp>
 
 class NullMaskTest : public cudf::test::BaseFixture {};
 
diff --git a/cpp/tests/streams/reduction_test.cpp b/cpp/tests/streams/reduction_test.cpp
index b4f013fc960..9ab972302e4 100644
--- a/cpp/tests/streams/reduction_test.cpp
+++ b/cpp/tests/streams/reduction_test.cpp
@@ -17,11 +17,8 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/default_stream.hpp>
-#include <cudf_test/type_lists.hpp>
 
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/reduction.hpp>
-#include <cudf/scalar/scalar.hpp>
 #include <cudf/scalar/scalar_factories.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 
diff --git a/cpp/tests/streams/rolling_test.cpp b/cpp/tests/streams/rolling_test.cpp
index b352ad2c0d2..4d9899870b4 100644
--- a/cpp/tests/streams/rolling_test.cpp
+++ b/cpp/tests/streams/rolling_test.cpp
@@ -17,12 +17,10 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/default_stream.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/rolling.hpp>
 #include <cudf/scalar/scalar.hpp>
-#include <cudf/scalar/scalar_factories.hpp>
 
 class RollingTest : public cudf::test::BaseFixture {};
 
diff --git a/cpp/tests/streams/stream_compaction_test.cpp b/cpp/tests/streams/stream_compaction_test.cpp
index 07b2d77cc04..e7b282601e1 100644
--- a/cpp/tests/streams/stream_compaction_test.cpp
+++ b/cpp/tests/streams/stream_compaction_test.cpp
@@ -15,20 +15,16 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
 
-#include <cudf/copying.hpp>
 #include <cudf/sorting.hpp>
 #include <cudf/stream_compaction.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 
-#include <cmath>
-
 auto constexpr NaN          = std::numeric_limits<double>::quiet_NaN();
 auto constexpr KEEP_ANY     = cudf::duplicate_keep_option::KEEP_ANY;
 auto constexpr KEEP_FIRST   = cudf::duplicate_keep_option::KEEP_FIRST;
diff --git a/cpp/tests/streams/strings/factory_test.cpp b/cpp/tests/streams/strings/factory_test.cpp
index 36e595ab9fa..449e0830b0c 100644
--- a/cpp/tests/streams/strings/factory_test.cpp
+++ b/cpp/tests/streams/strings/factory_test.cpp
@@ -15,7 +15,6 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/default_stream.hpp>
 
 #include <cudf/column/column_factories.hpp>
diff --git a/cpp/tests/streams/strings/reverse_test.cpp b/cpp/tests/streams/strings/reverse_test.cpp
index 4b4d0a7aff5..154e1c1b715 100644
--- a/cpp/tests/streams/strings/reverse_test.cpp
+++ b/cpp/tests/streams/strings/reverse_test.cpp
@@ -21,7 +21,6 @@
 #include <cudf/strings/reverse.hpp>
 
 #include <string>
-#include <vector>
 
 class StringsReverseTest : public cudf::test::BaseFixture {};
 
diff --git a/cpp/tests/streams/transform_test.cpp b/cpp/tests/streams/transform_test.cpp
index cf81dc6fb42..9f168abcb31 100644
--- a/cpp/tests/streams/transform_test.cpp
+++ b/cpp/tests/streams/transform_test.cpp
@@ -15,17 +15,11 @@
  */
 
 #include <cudf_test/base_fixture.hpp>
-#include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/default_stream.hpp>
-#include <cudf_test/table_utilities.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/ast/expressions.hpp>
-#include <cudf/column/column.hpp>
-#include <cudf/column/column_factories.hpp>
 #include <cudf/column/column_view.hpp>
-#include <cudf/detail/utilities/integer_utils.hpp>
 #include <cudf/transform.hpp>
 #include <cudf/types.hpp>
 
diff --git a/cpp/tests/strings/array_tests.cpp b/cpp/tests/strings/array_tests.cpp
index 9c0ecaa52c0..06b9c2fa3c1 100644
--- a/cpp/tests/strings/array_tests.cpp
+++ b/cpp/tests/strings/array_tests.cpp
@@ -23,10 +23,8 @@
 #include <cudf/copying.hpp>
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/sorting.hpp>
-#include <cudf/strings/strings_column_view.hpp>
 #include <cudf/strings/utilities.hpp>
 #include <cudf/table/table_view.hpp>
-#include <cudf/utilities/default_stream.hpp>
 
 #include <thrust/iterator/constant_iterator.h>
 #include <thrust/iterator/transform_iterator.h>
diff --git a/cpp/tests/strings/combine/concatenate_tests.cpp b/cpp/tests/strings/combine/concatenate_tests.cpp
index bb57d6f5e8a..e53adcf373a 100644
--- a/cpp/tests/strings/combine/concatenate_tests.cpp
+++ b/cpp/tests/strings/combine/concatenate_tests.cpp
@@ -22,7 +22,6 @@
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/strings/combine.hpp>
 #include <cudf/strings/strings_column_view.hpp>
-#include <cudf/table/table.hpp>
 #include <cudf/types.hpp>
 
 #include <thrust/iterator/transform_iterator.h>
diff --git a/cpp/tests/strings/combine/join_list_elements_tests.cpp b/cpp/tests/strings/combine/join_list_elements_tests.cpp
index 00317146088..c92f1cfc8f8 100644
--- a/cpp/tests/strings/combine/join_list_elements_tests.cpp
+++ b/cpp/tests/strings/combine/join_list_elements_tests.cpp
@@ -22,7 +22,6 @@
 #include <cudf/scalar/scalar.hpp>
 #include <cudf/strings/combine.hpp>
 #include <cudf/strings/strings_column_view.hpp>
-#include <cudf/types.hpp>
 
 using namespace cudf::test::iterators;
 
diff --git a/cpp/tests/strings/concatenate_tests.cpp b/cpp/tests/strings/concatenate_tests.cpp
index 5cf4015b9e9..51dcc60d95e 100644
--- a/cpp/tests/strings/concatenate_tests.cpp
+++ b/cpp/tests/strings/concatenate_tests.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2019-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,6 @@
 
 #include <cudf/column/column_factories.hpp>
 #include <cudf/concatenate.hpp>
-#include <cudf/strings/strings_column_view.hpp>
 
 #include <vector>
 
diff --git a/cpp/tests/strings/datetime_tests.cpp b/cpp/tests/strings/datetime_tests.cpp
index b3dc3010c67..da0db0fc056 100644
--- a/cpp/tests/strings/datetime_tests.cpp
+++ b/cpp/tests/strings/datetime_tests.cpp
@@ -19,7 +19,6 @@
 #include <cudf_test/column_wrapper.hpp>
 
 #include <cudf/strings/convert/convert_datetime.hpp>
-#include <cudf/strings/convert/convert_durations.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 #include <cudf/unary.hpp>
 #include <cudf/wrappers/durations.hpp>
diff --git a/cpp/tests/strings/extract_tests.cpp b/cpp/tests/strings/extract_tests.cpp
index 7e0338f1bf4..37b25d9b287 100644
--- a/cpp/tests/strings/extract_tests.cpp
+++ b/cpp/tests/strings/extract_tests.cpp
@@ -21,7 +21,6 @@
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/table_utilities.hpp>
 
-#include <cudf/detail/iterator.cuh>
 #include <cudf/strings/extract.hpp>
 #include <cudf/strings/regex/regex_program.hpp>
 #include <cudf/strings/strings_column_view.hpp>
diff --git a/cpp/tests/strings/findall_tests.cpp b/cpp/tests/strings/findall_tests.cpp
index 4821a7fa999..7eb4b32d078 100644
--- a/cpp/tests/strings/findall_tests.cpp
+++ b/cpp/tests/strings/findall_tests.cpp
@@ -20,7 +20,6 @@
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/iterator_utilities.hpp>
-#include <cudf_test/table_utilities.hpp>
 
 #include <cudf/strings/findall.hpp>
 #include <cudf/strings/regex/regex_program.hpp>
@@ -28,8 +27,6 @@
 
 #include <thrust/iterator/transform_iterator.h>
 
-#include <vector>
-
 struct StringsFindallTests : public cudf::test::BaseFixture {};
 
 TEST_F(StringsFindallTests, FindallTest)
diff --git a/cpp/tests/strings/fixed_point_tests.cpp b/cpp/tests/strings/fixed_point_tests.cpp
index 79054551498..b788c05c152 100644
--- a/cpp/tests/strings/fixed_point_tests.cpp
+++ b/cpp/tests/strings/fixed_point_tests.cpp
@@ -23,8 +23,6 @@
 #include <cudf/strings/convert/convert_fixed_point.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 
-#include <limits>
-
 struct StringsConvertTest : public cudf::test::BaseFixture {};
 
 template <typename T>
diff --git a/cpp/tests/strings/integers_tests.cpp b/cpp/tests/strings/integers_tests.cpp
index 26bcfe8028d..c08effdb969 100644
--- a/cpp/tests/strings/integers_tests.cpp
+++ b/cpp/tests/strings/integers_tests.cpp
@@ -24,9 +24,6 @@
 #include <cudf/strings/strings_column_view.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 
-#include <rmm/cuda_stream_view.hpp>
-#include <rmm/device_uvector.hpp>
-
 #include <thrust/host_vector.h>
 #include <thrust/iterator/transform_iterator.h>
 
diff --git a/cpp/tests/structs/structs_column_tests.cpp b/cpp/tests/structs/structs_column_tests.cpp
index 219bd6d8b01..a34ff25cb69 100644
--- a/cpp/tests/structs/structs_column_tests.cpp
+++ b/cpp/tests/structs/structs_column_tests.cpp
@@ -17,28 +17,18 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_factories.hpp>
-#include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/detail/utilities/device_operators.cuh>
 #include <cudf/lists/lists_column_view.hpp>
-#include <cudf/null_mask.hpp>
-#include <cudf/structs/structs_column_view.hpp>
-#include <cudf/table/table.hpp>
-#include <cudf/table/table_view.hpp>
 #include <cudf/types.hpp>
 #include <cudf/utilities/error.hpp>
 
 #include <rmm/device_buffer.hpp>
 
-#include <thrust/host_vector.h>
 #include <thrust/iterator/counting_iterator.h>
-#include <thrust/scan.h>
-#include <thrust/sequence.h>
 
 #include <algorithm>
 #include <functional>
diff --git a/cpp/tests/structs/utilities_tests.cpp b/cpp/tests/structs/utilities_tests.cpp
index c33eedf9bd9..c0df2f01a63 100644
--- a/cpp/tests/structs/utilities_tests.cpp
+++ b/cpp/tests/structs/utilities_tests.cpp
@@ -14,21 +14,15 @@
  * limitations under the License.
  */
 
-#include "cudf_test/default_stream.hpp"
-
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/iterator_utilities.hpp>
 #include <cudf_test/table_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/column/column_factories.hpp>
-#include <cudf/detail/aggregation/aggregation.hpp>
 #include <cudf/detail/null_mask.hpp>
 #include <cudf/detail/structs/utilities.hpp>
-#include <cudf/null_mask.hpp>
 #include <cudf/utilities/default_stream.hpp>
 #include <cudf/utilities/memory_resource.hpp>
 
diff --git a/cpp/tests/table/row_operators_tests.cpp b/cpp/tests/table/row_operators_tests.cpp
index 5fa63c47cf0..216c4d7b6bb 100644
--- a/cpp/tests/table/row_operators_tests.cpp
+++ b/cpp/tests/table/row_operators_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_view.hpp>
 #include <cudf/copying.hpp>
diff --git a/cpp/tests/table/table_tests.cpp b/cpp/tests/table/table_tests.cpp
index 1637ba7d7d3..363f1a0ba5d 100644
--- a/cpp/tests/table/table_tests.cpp
+++ b/cpp/tests/table/table_tests.cpp
@@ -17,17 +17,14 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/table_utilities.hpp>
 #include <cudf_test/testing_main.hpp>
 
 #include <cudf/column/column.hpp>
 #include <cudf/column/column_view.hpp>
-#include <cudf/copying.hpp>
 #include <cudf/table/table.hpp>
 #include <cudf/table/table_view.hpp>
 
 #include <memory>
-#include <random>
 
 template <typename T>
 using column_wrapper = cudf::test::fixed_width_column_wrapper<T>;
diff --git a/cpp/tests/text/minhash_tests.cpp b/cpp/tests/text/minhash_tests.cpp
index e23f3f6e7d8..ef35a4472cf 100644
--- a/cpp/tests/text/minhash_tests.cpp
+++ b/cpp/tests/text/minhash_tests.cpp
@@ -21,13 +21,9 @@
 
 #include <cudf/column/column.hpp>
 #include <cudf/strings/strings_column_view.hpp>
-#include <cudf/utilities/span.hpp>
 
 #include <nvtext/minhash.hpp>
 
-#include <rmm/cuda_stream_view.hpp>
-#include <rmm/device_uvector.hpp>
-
 #include <vector>
 
 struct MinHashTest : public cudf::test::BaseFixture {};
diff --git a/cpp/tests/text/ngrams_tests.cpp b/cpp/tests/text/ngrams_tests.cpp
index 1acb4fc4265..c72c7cfc80e 100644
--- a/cpp/tests/text/ngrams_tests.cpp
+++ b/cpp/tests/text/ngrams_tests.cpp
@@ -28,8 +28,6 @@
 
 #include <thrust/iterator/transform_iterator.h>
 
-#include <vector>
-
 struct TextGenerateNgramsTest : public cudf::test::BaseFixture {};
 
 TEST_F(TextGenerateNgramsTest, Ngrams)
diff --git a/cpp/tests/text/normalize_tests.cpp b/cpp/tests/text/normalize_tests.cpp
index b0d41004e7e..2515cc917fa 100644
--- a/cpp/tests/text/normalize_tests.cpp
+++ b/cpp/tests/text/normalize_tests.cpp
@@ -20,7 +20,6 @@
 
 #include <cudf/column/column.hpp>
 #include <cudf/copying.hpp>
-#include <cudf/scalar/scalar.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 
 #include <nvtext/normalize.hpp>
diff --git a/cpp/tests/text/stemmer_tests.cpp b/cpp/tests/text/stemmer_tests.cpp
index a343913411c..82c4bf53cfc 100644
--- a/cpp/tests/text/stemmer_tests.cpp
+++ b/cpp/tests/text/stemmer_tests.cpp
@@ -19,7 +19,6 @@
 #include <cudf_test/column_wrapper.hpp>
 
 #include <cudf/column/column.hpp>
-#include <cudf/scalar/scalar.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 
 #include <nvtext/stemmer.hpp>
diff --git a/cpp/tests/text/subword_tests.cpp b/cpp/tests/text/subword_tests.cpp
index a615780c02a..782551ad66e 100644
--- a/cpp/tests/text/subword_tests.cpp
+++ b/cpp/tests/text/subword_tests.cpp
@@ -19,13 +19,11 @@
 #include <cudf_test/column_wrapper.hpp>
 
 #include <cudf/column/column.hpp>
-#include <cudf/column/column_view.hpp>
 #include <cudf/strings/strings_column_view.hpp>
 
 #include <nvtext/subword_tokenize.hpp>
 
 #include <fstream>
-#include <iostream>
 #include <vector>
 
 // Global environment for temporary files
diff --git a/cpp/tests/transform/bools_to_mask_test.cpp b/cpp/tests/transform/bools_to_mask_test.cpp
index 2684123c08a..9437440f34d 100644
--- a/cpp/tests/transform/bools_to_mask_test.cpp
+++ b/cpp/tests/transform/bools_to_mask_test.cpp
@@ -20,10 +20,8 @@
 #include <cudf_test/testing_main.hpp>
 
 #include <cudf/column/column.hpp>
-#include <cudf/column/column_view.hpp>
 #include <cudf/detail/iterator.cuh>
 #include <cudf/transform.hpp>
-#include <cudf/types.hpp>
 
 #include <thrust/host_vector.h>
 
diff --git a/cpp/tests/transform/nans_to_null_test.cpp b/cpp/tests/transform/nans_to_null_test.cpp
index ba16c100e7a..42ca872a936 100644
--- a/cpp/tests/transform/nans_to_null_test.cpp
+++ b/cpp/tests/transform/nans_to_null_test.cpp
@@ -17,12 +17,10 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column.hpp>
 #include <cudf/column/column_view.hpp>
 #include <cudf/transform.hpp>
-#include <cudf/types.hpp>
 
 template <typename T>
 struct NaNsToNullTest : public cudf::test::BaseFixture {
diff --git a/cpp/tests/transpose/transpose_test.cpp b/cpp/tests/transpose/transpose_test.cpp
index 5a88c402b8c..7797b2b2cf8 100644
--- a/cpp/tests/transpose/transpose_test.cpp
+++ b/cpp/tests/transpose/transpose_test.cpp
@@ -22,7 +22,6 @@
 #include <cudf/transpose.hpp>
 
 #include <algorithm>
-#include <limits>
 #include <random>
 #include <string>
 
diff --git a/cpp/tests/types/traits_test.cpp b/cpp/tests/types/traits_test.cpp
index 0d9092c33da..46468af515d 100644
--- a/cpp/tests/types/traits_test.cpp
+++ b/cpp/tests/types/traits_test.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <cudf_test/base_fixture.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/unary/cast_tests.cpp b/cpp/tests/unary/cast_tests.cpp
index 45b89b76070..ed4c1340dbb 100644
--- a/cpp/tests/unary/cast_tests.cpp
+++ b/cpp/tests/unary/cast_tests.cpp
@@ -20,18 +20,15 @@
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/detail/iterator.cuh>
-#include <cudf/detail/utilities/integer_utils.hpp>
 #include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/unary.hpp>
 #include <cudf/utilities/bit.hpp>
 #include <cudf/utilities/default_stream.hpp>
 #include <cudf/wrappers/timestamps.hpp>
 
-#include <cuda/std/limits>
 #include <thrust/host_vector.h>
 #include <thrust/iterator/counting_iterator.h>
 
-#include <type_traits>
 #include <vector>
 
 static auto const test_timestamps_D = std::vector<int32_t>{
diff --git a/cpp/tests/unary/math_ops_test.cpp b/cpp/tests/unary/math_ops_test.cpp
index 5bfbf70d5f9..663a919f3f4 100644
--- a/cpp/tests/unary/math_ops_test.cpp
+++ b/cpp/tests/unary/math_ops_test.cpp
@@ -22,10 +22,6 @@
 #include <cudf/detail/utilities/integer_utils.hpp>
 #include <cudf/dictionary/encode.hpp>
 #include <cudf/unary.hpp>
-#include <cudf/utilities/bit.hpp>
-#include <cudf/wrappers/timestamps.hpp>
-
-#include <cuda/std/climits>
 
 #include <vector>
 
diff --git a/cpp/tests/unary/unary_ops_test.cpp b/cpp/tests/unary/unary_ops_test.cpp
index e7477c34642..3c616461c74 100644
--- a/cpp/tests/unary/unary_ops_test.cpp
+++ b/cpp/tests/unary/unary_ops_test.cpp
@@ -23,7 +23,6 @@
 #include <cudf/detail/iterator.cuh>
 #include <cudf/unary.hpp>
 
-#include <cuda/std/limits>
 #include <thrust/iterator/counting_iterator.h>
 
 template <typename T>
diff --git a/cpp/tests/utilities/random_seed.cpp b/cpp/tests/utilities/random_seed.cpp
index ab5a31ce161..555d89b7dc5 100644
--- a/cpp/tests/utilities/random_seed.cpp
+++ b/cpp/tests/utilities/random_seed.cpp
@@ -13,8 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+#include <cudf/utilities/export.hpp>
 
-#include <cudf/types.hpp>
+#include <cstdint>
 
 namespace cudf {
 namespace test {
diff --git a/cpp/tests/utilities_tests/column_debug_tests.cpp b/cpp/tests/utilities_tests/column_debug_tests.cpp
index 7aa05af4591..2a57d678d07 100644
--- a/cpp/tests/utilities_tests/column_debug_tests.cpp
+++ b/cpp/tests/utilities_tests/column_debug_tests.cpp
@@ -16,12 +16,9 @@
 
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/debug_utilities.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/strings/strings_column_view.hpp>
-
 #include <thrust/iterator/transform_iterator.h>
 
 #include <type_traits>
diff --git a/cpp/tests/utilities_tests/column_utilities_tests.cpp b/cpp/tests/utilities_tests/column_utilities_tests.cpp
index 9d6d5ccb9b5..a13ce825d0b 100644
--- a/cpp/tests/utilities_tests/column_utilities_tests.cpp
+++ b/cpp/tests/utilities_tests/column_utilities_tests.cpp
@@ -17,20 +17,16 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/random.hpp>
 #include <cudf_test/testing_main.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/copying.hpp>
 #include <cudf/detail/iterator.cuh>
-#include <cudf/strings/strings_column_view.hpp>
 
 #include <thrust/iterator/constant_iterator.h>
 #include <thrust/iterator/transform_iterator.h>
 
-#include <type_traits>
-
 template <typename T>
 struct ColumnUtilitiesTest : public cudf::test::BaseFixture {
   cudf::test::UniformRandomGenerator<cudf::size_type> random;
diff --git a/cpp/tests/utilities_tests/column_wrapper_tests.cpp b/cpp/tests/utilities_tests/column_wrapper_tests.cpp
index 479c6687e75..339678f3be8 100644
--- a/cpp/tests/utilities_tests/column_wrapper_tests.cpp
+++ b/cpp/tests/utilities_tests/column_wrapper_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/random.hpp>
 #include <cudf_test/type_lists.hpp>
 
diff --git a/cpp/tests/utilities_tests/lists_column_wrapper_tests.cpp b/cpp/tests/utilities_tests/lists_column_wrapper_tests.cpp
index 5e3fda5e6f7..ff50dc39979 100644
--- a/cpp/tests/utilities_tests/lists_column_wrapper_tests.cpp
+++ b/cpp/tests/utilities_tests/lists_column_wrapper_tests.cpp
@@ -17,7 +17,6 @@
 #include <cudf_test/base_fixture.hpp>
 #include <cudf_test/column_utilities.hpp>
 #include <cudf_test/column_wrapper.hpp>
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_lists.hpp>
 
 #include <cudf/column/column_factories.hpp>
diff --git a/cpp/tests/utilities_tests/type_check_tests.cpp b/cpp/tests/utilities_tests/type_check_tests.cpp
index fecb896f95a..c1c5776be74 100644
--- a/cpp/tests/utilities_tests/type_check_tests.cpp
+++ b/cpp/tests/utilities_tests/type_check_tests.cpp
@@ -18,7 +18,6 @@
 #include <cudf_test/column_wrapper.hpp>
 #include <cudf_test/type_lists.hpp>
 
-#include <cudf/fixed_point/fixed_point.hpp>
 #include <cudf/table/table_view.hpp>
 #include <cudf/utilities/type_checks.hpp>
 #include <cudf/wrappers/durations.hpp>
diff --git a/cpp/tests/utilities_tests/type_list_tests.cpp b/cpp/tests/utilities_tests/type_list_tests.cpp
index 849457056e4..6c3a84763a0 100644
--- a/cpp/tests/utilities_tests/type_list_tests.cpp
+++ b/cpp/tests/utilities_tests/type_list_tests.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <cudf_test/cudf_gtest.hpp>
 #include <cudf_test/type_list_utilities.hpp>
 
 using namespace cudf::test;  // this will make reading code way easier
@@ -23,6 +22,7 @@ namespace {
 // Work around to remove parentheses surrounding a type
 template <typename T>
 struct argument_type;
+
 template <typename T, typename U>
 struct argument_type<T(U)> {
   using type = U;
diff --git a/python/cudf/cudf/_lib/column.pyx b/python/cudf/cudf/_lib/column.pyx
index 065655505b8..94dbdf5534d 100644
--- a/python/cudf/cudf/_lib/column.pyx
+++ b/python/cudf/cudf/_lib/column.pyx
@@ -688,15 +688,18 @@ cdef class Column:
         # special case for string column
         is_string_column = (cv.type().id() == libcudf_types.type_id.STRING)
         if is_string_column:
-            # get the size from offset child column (device to host copy)
-            offsets_column_index = 0
-            offset_child_column = cv.child(offsets_column_index)
-            if offset_child_column.size() == 0:
+            if cv.num_children() == 0:
                 base_nbytes = 0
             else:
-                chars_size = get_element(
-                    offset_child_column, offset_child_column.size()-1).value
-                base_nbytes = chars_size
+                # get the size from offset child column (device to host copy)
+                offsets_column_index = 0
+                offset_child_column = cv.child(offsets_column_index)
+                if offset_child_column.size() == 0:
+                    base_nbytes = 0
+                else:
+                    chars_size = get_element(
+                        offset_child_column, offset_child_column.size()-1).value
+                    base_nbytes = chars_size
 
         if data_ptr:
             if data_owner is None: