diff --git a/vtkm/cont/ArrayHandleTransform.h b/vtkm/cont/ArrayHandleTransform.h
index fe85a39a2..909962c9a 100644
--- a/vtkm/cont/ArrayHandleTransform.h
+++ b/vtkm/cont/ArrayHandleTransform.h
@@ -244,7 +244,7 @@ struct TransformFunctorManager
 
   VTKM_CONT TransformFunctorManager() = default;
 
-  VTKM_CONT TransformFunctorManager(const TransformFunctorManager& other) = default;
+  VTKM_CONT TransformFunctorManager(const TransformFunctorManager&) = default;
 
   VTKM_CONT TransformFunctorManager(const ProvidedFunctorType& functor)
     : Superclass(functor)
diff --git a/vtkm/cont/StorageImplicit.h b/vtkm/cont/StorageImplicit.h
index 0f2062372..b1696a079 100644
--- a/vtkm/cont/StorageImplicit.h
+++ b/vtkm/cont/StorageImplicit.h
@@ -68,10 +68,10 @@ public:
   {
   }
 
-  VTKM_CONT Storage(const ClassType& src) = default;
-  VTKM_CONT Storage(ClassType&& src) = default;
-  VTKM_CONT ClassType& operator=(const ClassType& src) = default;
-  VTKM_CONT ClassType& operator=(ClassType&& src) = default;
+  VTKM_CONT Storage(const ClassType&) = default;
+  VTKM_CONT Storage(ClassType&&) = default;
+  VTKM_CONT ClassType& operator=(const ClassType&) = default;
+  VTKM_CONT ClassType& operator=(ClassType&&) = default;
 
   // All these methods do nothing but raise errors.
   VTKM_CONT
diff --git a/vtkm/cont/VariantArrayHandle.h b/vtkm/cont/VariantArrayHandle.h
index 2e49b57f0..142b8f1cb 100644
--- a/vtkm/cont/VariantArrayHandle.h
+++ b/vtkm/cont/VariantArrayHandle.h
@@ -85,18 +85,17 @@ public:
   {
   }
 
-  VTKM_CONT VariantArrayHandleBase(const VariantArrayHandleBase& src) = default;
-  VTKM_CONT VariantArrayHandleBase(VariantArrayHandleBase&& src) noexcept = default;
+  VTKM_CONT VariantArrayHandleBase(const VariantArrayHandleBase&) = default;
+  VTKM_CONT VariantArrayHandleBase(VariantArrayHandleBase&&) noexcept = default;
 
   VTKM_CONT
   ~VariantArrayHandleBase() {}
 
   VTKM_CONT
-  VariantArrayHandleBase<TypeList>& operator=(const VariantArrayHandleBase<TypeList>& src) =
-    default;
+  VariantArrayHandleBase<TypeList>& operator=(const VariantArrayHandleBase<TypeList>&) = default;
 
   VTKM_CONT
-  VariantArrayHandleBase<TypeList>& operator=(VariantArrayHandleBase<TypeList>&& src) noexcept =
+  VariantArrayHandleBase<TypeList>& operator=(VariantArrayHandleBase<TypeList>&&) noexcept =
     default;