diff --git a/xla/tests/BUILD b/xla/tests/BUILD
index 4fb88fa0de2f8..25045815a5a03 100644
--- a/xla/tests/BUILD
+++ b/xla/tests/BUILD
@@ -273,6 +273,17 @@ cc_library(
     ],
 )
 
+cc_library(
+    name = "hlo_pjrt_interpreter_reference_mixin",
+    testonly = True,
+    hdrs = ["hlo_pjrt_interpreter_reference_mixin.h"],
+    deps = [
+        ":hlo_runner_agnostic_reference_mixin",
+        "//xla/pjrt/interpreter:interpreter_client",
+        "//xla/service:hlo_runner_pjrt",
+    ],
+)
+
 cc_library(
     name = "hlo_pjrt_test_base",
     testonly = True,
diff --git a/xla/tests/hlo_pjrt_interpreter_reference_mixin.h b/xla/tests/hlo_pjrt_interpreter_reference_mixin.h
new file mode 100644
index 0000000000000..cdbd2f3575cfb
--- /dev/null
+++ b/xla/tests/hlo_pjrt_interpreter_reference_mixin.h
@@ -0,0 +1,50 @@
+/* Copyright 2025 The OpenXLA Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+
+#ifndef XLA_TESTS_HLO_PJRT_INTERPRETER_REFERENCE_MIXIN_H_
+#define XLA_TESTS_HLO_PJRT_INTERPRETER_REFERENCE_MIXIN_H_
+
+#include <memory>
+
+#include "xla/pjrt/interpreter/interpreter_client.h"
+#include "xla/service/hlo_runner_pjrt.h"
+#include "xla/tests/hlo_runner_agnostic_reference_mixin.h"
+
+namespace xla {
+
+// A wrapper mixin around HloRunnerAgnosticReferenceMixin which provides a
+// default reference backend via HloRunnerPjRt using the PjRt InterpreterClient.
+//
+// The mixin requires that that the test class is a subclass of
+// HloRunnerAgnosticTestBase.
+template <typename T>
+class HloPjRtInterpreterReferenceMixin
+    : public HloRunnerAgnosticReferenceMixin<T> {
+ protected:
+  template <typename... BaseArgs>
+  explicit HloPjRtInterpreterReferenceMixin(BaseArgs&&... base_args)
+      : HloRunnerAgnosticReferenceMixin<T>(
+            std::make_unique<HloRunnerPjRt>(
+                std::make_unique<InterpreterClient>(),
+                InterpreterClient::DeviceShapeRepresentation,
+                InterpreterClient::ShapeSizeBytes,
+                /*use_parameter_layout_on_device=*/true),
+            std::forward<BaseArgs>(base_args)...) {}
+  ~HloPjRtInterpreterReferenceMixin() override = default;
+};
+
+}  // namespace xla
+
+#endif  // XLA_TESTS_HLO_PJRT_INTERPRETER_REFERENCE_MIXIN_H_