diff --git a/Code/Editor/Objects/BaseObject.h b/Code/Editor/Objects/BaseObject.h
index fea248c7f7..666d9f3e1d 100644
--- a/Code/Editor/Objects/BaseObject.h
+++ b/Code/Editor/Objects/BaseObject.h
@@ -31,7 +31,6 @@ class CUndoBaseObject;
 class CObjectManager;
 class CGizmo;
 class CObjectArchive;
-struct SSubObjSelectionModifyContext;
 struct SRayHitInfo;
 class CPopupMenuItem;
 class QMenu;
diff --git a/Code/Editor/Objects/SubObjSelection.cpp b/Code/Editor/Objects/SubObjSelection.cpp
deleted file mode 100644
index 3a67b8dfb7..0000000000
--- a/Code/Editor/Objects/SubObjSelection.cpp
+++ /dev/null
@@ -1,62 +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
- *
- */
-
-
-#include "EditorDefs.h"
-
-#include "SubObjSelection.h"
-
-SSubObjSelOptions g_SubObjSelOptions;
-
-/*
-
-//////////////////////////////////////////////////////////////////////////
-bool CSubObjSelContext::IsEmpty() const
-{
-    if (GetCount() == 0)
-        return false;
-    for (int i = 0; i < GetCount(); i++)
-    {
-        CSubObjectSelection *pSel = GetSelection(i);
-        if (!pSel->IsEmpty())
-            return true;
-    }
-    return false;
-}
-
-//////////////////////////////////////////////////////////////////////////
-void CSubObjSelContext::ModifySelection( SSubObjSelectionModifyContext &modCtx )
-{
-    for (int n = 0; n < GetCount(); n++)
-    {
-        CSubObjectSelection *pSel = GetSelection(n);
-        if (pSel->IsEmpty())
-            continue;
-        modCtx.pSubObjSelection = pSel;
-        pSel->pGeometry->SubObjSelectionModify( modCtx );
-    }
-    if (modCtx.type == SO_MODIFY_MOVE)
-    {
-        OnSelectionChange();
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////
-void CSubObjSelContext::AcceptModifySelection()
-{
-    for (int n = 0; n < GetCount(); n++)
-    {
-        CSubObjectSelection *pSel = GetSelection(n);
-        if (pSel->IsEmpty())
-            continue;
-        if (pSel->pGeometry)
-            pSel->pGeometry->Update();
-    }
-}
-
-*/
diff --git a/Code/Editor/Objects/SubObjSelection.h b/Code/Editor/Objects/SubObjSelection.h
deleted file mode 100644
index 9e07bdc203..0000000000
--- a/Code/Editor/Objects/SubObjSelection.h
+++ /dev/null
@@ -1,91 +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
- *
- */
-
-
-#ifndef CRYINCLUDE_EDITOR_OBJECTS_SUBOBJSELECTION_H
-#define CRYINCLUDE_EDITOR_OBJECTS_SUBOBJSELECTION_H
-#pragma once
-
-//////////////////////////////////////////////////////////////////////////
-// Sub Object element type.
-//////////////////////////////////////////////////////////////////////////
-enum ESubObjElementType
-{
-    SO_ELEM_NONE = 0,
-    SO_ELEM_VERTEX,
-    SO_ELEM_EDGE,
-    SO_ELEM_FACE,
-    SO_ELEM_POLYGON,
-    SO_ELEM_UV,
-};
-
-//////////////////////////////////////////////////////////////////////////
-enum ESubObjDisplayType
-{
-    SO_DISPLAY_WIREFRAME,
-    SO_DISPLAY_FLAT,
-    SO_DISPLAY_GEOMETRY,
-};
-
-//////////////////////////////////////////////////////////////////////////
-// Options for sub-object selection.
-//////////////////////////////////////////////////////////////////////////
-struct SSubObjSelOptions
-{
-    bool bSelectByVertex;
-    bool bIgnoreBackfacing;
-    int nMatID;
-
-    bool bSoftSelection;
-    float fSoftSelFalloff;
-
-    // Display options.
-    bool bDisplayBackfacing;
-    bool bDisplayNormals;
-    float fNormalsLength;
-    ESubObjDisplayType displayType;
-
-    SSubObjSelOptions()
-    {
-        bSelectByVertex = false;
-        bIgnoreBackfacing = false;
-        bSoftSelection = false;
-        nMatID = 0;
-        fSoftSelFalloff = 1;
-
-        bDisplayBackfacing = true;
-        bDisplayNormals = false;
-        displayType = SO_DISPLAY_FLAT;
-        fNormalsLength = 0.4f;
-    }
-};
-
-extern SSubObjSelOptions g_SubObjSelOptions;
-
-
-//////////////////////////////////////////////////////////////////////////
-enum ESubObjSelectionModifyType
-{
-    SO_MODIFY_UNSELECT,
-    SO_MODIFY_MOVE,
-    SO_MODIFY_ROTATE,
-    SO_MODIFY_SCALE,
-};
-
-//////////////////////////////////////////////////////////////////////////
-// This structure is passed when user is dragging sub object selection.
-//////////////////////////////////////////////////////////////////////////
-struct SSubObjSelectionModifyContext
-{
-    CViewport* view;
-    ESubObjSelectionModifyType type;
-    Vec3 vValue;
-    Matrix34 worldRefFrame;
-};
-
-#endif // CRYINCLUDE_EDITOR_OBJECTS_SUBOBJSELECTION_H
diff --git a/Code/Editor/editor_lib_files.cmake b/Code/Editor/editor_lib_files.cmake
index 4545bb5b44..aa52b18b45 100644
--- a/Code/Editor/editor_lib_files.cmake
+++ b/Code/Editor/editor_lib_files.cmake
@@ -452,8 +452,6 @@ set(FILES
     Objects/DisplayContextShared.inl
     Objects/SelectionGroup.cpp
     Objects/SelectionGroup.h
-    Objects/SubObjSelection.cpp
-    Objects/SubObjSelection.h
     Objects/ObjectLoader.cpp
     Objects/ObjectLoader.h
     Objects/ObjectManager.cpp