diff --git a/Code/Legacy/CryCommon/Mocks/IAudioSystemMock.h b/Code/Legacy/CryCommon/Mocks/IAudioSystemMock.h
deleted file mode 100644
index e93be4813f..0000000000
--- a/Code/Legacy/CryCommon/Mocks/IAudioSystemMock.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (c) Contributors to the Open 3D Engine Project.
- * For complete copyright and license terms please see the LICENSE at the root of this distribution.
- *
- * SPDX-License-Identifier: Apache-2.0 OR MIT
- *
- */
-
-#pragma once
-
-#include <IAudioSystem.h>
-
-namespace Audio
-{
-    struct AudioProxyMock
-        : public IAudioProxy
-    {
-        MOCK_METHOD2(Initialize, void(const char* const sObjectName, bool bInitAsync /* = true */));
-        MOCK_METHOD0(Release, void());
-        MOCK_METHOD0(Reset, void());
-        MOCK_METHOD1(StopTrigger, void(TAudioControlID nTriggerID));
-        MOCK_METHOD2(SetSwitchState, void(TAudioControlID nSwitchID, TAudioSwitchStateID nStateID));
-        MOCK_METHOD2(SetRtpcValue, void(TAudioControlID nRtpcID, float fValue));
-        MOCK_METHOD1(SetObstructionCalcType, void(EAudioObjectObstructionCalcType eObstructionType));
-        MOCK_METHOD1(SetPosition, void(const SATLWorldPosition& rPosition));
-        MOCK_METHOD1(SetPosition, void(const AZ::Vector3& rPosition));
-        MOCK_METHOD2(SetEnvironmentAmount, void(TAudioEnvironmentID nEnvironmentID, float fAmount));
-        MOCK_METHOD0(SetCurrentEnvironments, void());
-        MOCK_CONST_METHOD0(GetAudioObjectID, TAudioObjectID());
-    };
-
-    struct AudioSystemMock
-        : public IAudioSystem
-    {
-        MOCK_METHOD0(Initialize, bool());
-        MOCK_METHOD0(Release, void());
-        MOCK_METHOD1(PushRequest, void(const SAudioRequest& rAudioRequestData));
-        MOCK_METHOD4(AddRequestListener, void(AudioRequestCallbackType func, void* pObjectToListenTo, EAudioRequestType requestType /* = eART_AUDIO_ALL_REQUESTS */, TATLEnumFlagsType specificRequestMask /* = ALL_AUDIO_REQUEST_SPECIFIC_TYPE_FLAGS */));
-        MOCK_METHOD2(RemoveRequestListener, void(AudioRequestCallbackType func, void* pObjectToListenTo));
-        MOCK_METHOD0(ExternalUpdate, void());
-        MOCK_CONST_METHOD1(GetAudioTriggerID, TAudioControlID(const char* sAudioTriggerName));
-        MOCK_CONST_METHOD1(GetAudioRtpcID, TAudioControlID(const char* sAudioRtpcName));
-        MOCK_CONST_METHOD1(GetAudioSwitchID, TAudioControlID(const char* sAudioSwitchName));
-        MOCK_CONST_METHOD2(GetAudioSwitchStateID, TAudioSwitchStateID(const TAudioControlID nSwitchID, const char* sAudioStateName));
-        MOCK_CONST_METHOD1(GetAudioPreloadRequestID, TAudioPreloadRequestID(const char* sAudioPreloadRequestName));
-        MOCK_CONST_METHOD1(GetAudioEnvironmentID, TAudioEnvironmentID(const char* sAudioEnvironmentName));
-        MOCK_METHOD1(ReserveAudioListenerID, bool(TAudioObjectID& rAudioListenerID));
-        MOCK_METHOD1(ReleaseAudioListenerID, bool(TAudioObjectID nAudioObjectID));
-        MOCK_METHOD1(OnCVarChanged, void(ICVar* const pCVar));
-        MOCK_METHOD1(GetInfo, void(SAudioSystemInfo& rAudioSystemInfo));
-        MOCK_CONST_METHOD0(GetControlsPath, const char*());
-        MOCK_METHOD0(UpdateControlsPath, void());
-        MOCK_METHOD0(GetFreeAudioProxy, IAudioProxy*());
-        MOCK_METHOD1(FreeAudioProxy, void(IAudioProxy* pIAudioProxy));
-        MOCK_CONST_METHOD2(GetAudioControlName, const char*(EAudioControlType eAudioEntityType, TATLIDType nAudioEntityID));
-        MOCK_CONST_METHOD2(GetAudioSwitchStateName, const char*(TAudioControlID switchID, TAudioSwitchStateID stateID));
-    };
-
-} // namespace Audio
diff --git a/Code/Legacy/CryCommon/crycommon_testing_files.cmake b/Code/Legacy/CryCommon/crycommon_testing_files.cmake
index 42deecd576..de7a764330 100644
--- a/Code/Legacy/CryCommon/crycommon_testing_files.cmake
+++ b/Code/Legacy/CryCommon/crycommon_testing_files.cmake
@@ -7,7 +7,6 @@
 #
 
 set(FILES
-    Mocks/IAudioSystemMock.h
     Mocks/IConsoleMock.h
     Mocks/ICryPakMock.h
     Mocks/ILogMock.h
diff --git a/Gems/AudioSystem/Code/Tests/AudioSystemTest.cpp b/Gems/AudioSystem/Code/Tests/AudioSystemTest.cpp
index 14e9f74fd2..1f03eec419 100644
--- a/Gems/AudioSystem/Code/Tests/AudioSystemTest.cpp
+++ b/Gems/AudioSystem/Code/Tests/AudioSystemTest.cpp
@@ -21,7 +21,6 @@
 
 #include <Mocks/ATLEntitiesMock.h>
 #include <Mocks/IAudioSystemImplementationMock.h>
-#include <Mocks/IAudioSystemMock.h>
 #include <Mocks/FileCacheManagerMock.h>
 
 #include <Mocks/IConsoleMock.h>