diff --git a/Core/Main/GTesting/itkTransformixFilterGTest.cxx b/Core/Main/GTesting/itkTransformixFilterGTest.cxx
index c17476058..8febc59d2 100644
--- a/Core/Main/GTesting/itkTransformixFilterGTest.cxx
+++ b/Core/Main/GTesting/itkTransformixFilterGTest.cxx
@@ -445,6 +445,7 @@ GTEST_TEST(itkTransformixFilter, IsDefaultInitialized)
   EXPECT_FALSE(transformixFilter.GetLogToConsole());
   EXPECT_FALSE(transformixFilter.GetLogToFile());
   EXPECT_EQ(transformixFilter.GetOutputMesh(), nullptr);
+  EXPECT_EQ(transformixFilter.GetNumberOfThreads(), 0);
 }
 
 
diff --git a/Core/Main/itkTransformixFilter.h b/Core/Main/itkTransformixFilter.h
index 42972df0f..5c190fe08 100644
--- a/Core/Main/itkTransformixFilter.h
+++ b/Core/Main/itkTransformixFilter.h
@@ -200,6 +200,9 @@ class ITK_TEMPLATE_EXPORT TransformixFilter : public ImageSource<TMovingImage>
     m_EnableOutput = false;
   }
 
+  itkSetMacro(NumberOfThreads, int);
+  itkGetConstMacro(NumberOfThreads, int);
+
   /** Sets an (optional) input mesh. An Update() will transform its points, and store them in the output mesh.  */
   void
   SetInputMesh(typename MeshType::ConstPointer mesh)
@@ -264,6 +267,8 @@ class ITK_TEMPLATE_EXPORT TransformixFilter : public ImageSource<TMovingImage>
   bool m_LogToConsole{ false };
   bool m_LogToFile{ false };
 
+  int m_NumberOfThreads{ 0 };
+
   typename MeshType::ConstPointer m_InputMesh{ nullptr };
   typename MeshType::Pointer      m_OutputMesh{ nullptr };
 };
diff --git a/Core/Main/itkTransformixFilter.hxx b/Core/Main/itkTransformixFilter.hxx
index 9d07ceecf..6294c391c 100644
--- a/Core/Main/itkTransformixFilter.hxx
+++ b/Core/Main/itkTransformixFilter.hxx
@@ -146,6 +146,11 @@ TransformixFilter<TMovingImage>::GenerateData()
     }
   }
 
+  if (m_NumberOfThreads > 0)
+  {
+    argumentMap.insert(ArgumentMapEntryType("-threads", std::to_string(m_NumberOfThreads)));
+  }
+
   // Setup xout
   const auto manager = m_EnableOutput
                          ? std::make_unique<const elx::xoutManager>(logFileName, m_LogToFile, m_LogToConsole)