diff --git a/openmp/libomptarget/include/OmptCallback.h b/openmp/libomptarget/include/OpenMP/OMPT/Callback.h
similarity index 95%
rename from openmp/libomptarget/include/OmptCallback.h
rename to openmp/libomptarget/include/OpenMP/OMPT/Callback.h
index ca4e73670daea..89c5731221e97 100644
--- a/openmp/libomptarget/include/OmptCallback.h
+++ b/openmp/libomptarget/include/OpenMP/OMPT/Callback.h
@@ -1,4 +1,4 @@
-//===---- OmptCallback.h - Target independent OMPT callbacks --*- C++ -*---===//
+//===-- OpenMP/OMPT/Callback.h - OpenMP Tooling callbacks -------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -11,8 +11,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef _OMPTCALLBACK_H
-#define _OMPTCALLBACK_H
+#ifndef OMPTARGET_OPENMP_OMPT_CALLBACK_H
+#define OMPTARGET_OPENMP_OMPT_CALLBACK_H
 
 #ifdef OMPT_SUPPORT
 
@@ -102,4 +102,4 @@ extern bool Initialized;
 #define performIfOmptInitialized(stmt)
 #endif // OMPT_SUPPORT
 
-#endif // _OMPTCALLBACK_H
+#endif // OMPTARGET_OPENMP_OMPT_CALLBACK_H
diff --git a/openmp/libomptarget/include/OmptConnector.h b/openmp/libomptarget/include/OpenMP/OMPT/Connector.h
similarity index 94%
rename from openmp/libomptarget/include/OmptConnector.h
rename to openmp/libomptarget/include/OpenMP/OMPT/Connector.h
index 3f48cabfba554..c7b37740d5642 100644
--- a/openmp/libomptarget/include/OmptConnector.h
+++ b/openmp/libomptarget/include/OpenMP/OMPT/Connector.h
@@ -1,4 +1,4 @@
-//===- OmptConnector.h - Target independent OpenMP target RTL -- C++ ------===//
+//===-- OpenMP/OMPT/Connector.h - OpenMP Tooling lib connector -*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -12,8 +12,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef _OMPTCONNECTOR_H
-#define _OMPTCONNECTOR_H
+#ifndef OMPTARGET_OPENMP_OMPT_CONNECTOR_H
+#define OMPTARGET_OPENMP_OMPT_CONNECTOR_H
 
 #ifdef OMPT_SUPPORT
 
@@ -106,4 +106,4 @@ class OmptLibraryConnectorTy {
 
 #pragma pop_macro("DEBUG_PREFIX")
 
-#endif // _OMPTCONNECTOR_H
+#endif // OMPTARGET_OPENMP_OMPT_CONNECTOR_H
diff --git a/openmp/libomptarget/src/OmptInterface.h b/openmp/libomptarget/include/OpenMP/OMPT/Interface.h
similarity index 98%
rename from openmp/libomptarget/src/OmptInterface.h
rename to openmp/libomptarget/include/OpenMP/OMPT/Interface.h
index 178cedacf4a58..8c3ef105c4993 100644
--- a/openmp/libomptarget/src/OmptInterface.h
+++ b/openmp/libomptarget/include/OpenMP/OMPT/Interface.h
@@ -1,4 +1,4 @@
-//===-------- OmptInterface.h - Target independent OpenMP target RTL ------===//
+//===-- OpenMP/OMPT/Interface.h - OpenMP Tooling interfaces ----*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// Declarations for OpenMP Tool callback dispatchers
+// Declarations for OpenMP Tool callback dispatchers.
 //
 //===----------------------------------------------------------------------===//
 
@@ -18,7 +18,7 @@
 #include <functional>
 #include <tuple>
 
-#include "OmptCallback.h"
+#include "Callback.h"
 #include "omp-tools.h"
 
 #include "llvm/Support/ErrorHandling.h"
diff --git a/openmp/libomptarget/plugins-nextgen/amdgpu/src/rtl.cpp b/openmp/libomptarget/plugins-nextgen/amdgpu/src/rtl.cpp
index 4b8ac2f5f9ff5..69acfa54e6c96 100644
--- a/openmp/libomptarget/plugins-nextgen/amdgpu/src/rtl.cpp
+++ b/openmp/libomptarget/plugins-nextgen/amdgpu/src/rtl.cpp
@@ -25,7 +25,7 @@
 #include "Shared/Utils.h"
 
 #include "GlobalHandler.h"
-#include "OmptCallback.h"
+#include "OpenMP/OMPT/Callback.h"
 #include "PluginInterface.h"
 #include "UtilitiesRTL.h"
 #include "omptarget.h"
diff --git a/openmp/libomptarget/plugins-nextgen/common/OMPT/OmptCallback.cpp b/openmp/libomptarget/plugins-nextgen/common/OMPT/OmptCallback.cpp
index b778b7287c7bc..fb8a156fe5767 100644
--- a/openmp/libomptarget/plugins-nextgen/common/OMPT/OmptCallback.cpp
+++ b/openmp/libomptarget/plugins-nextgen/common/OMPT/OmptCallback.cpp
@@ -20,8 +20,8 @@
 
 #include "Shared/Debug.h"
 
-#include "OmptCallback.h"
-#include "OmptConnector.h"
+#include "OpenMP/OMPT/Callback.h"
+#include "OpenMP/OMPT/Connector.h"
 
 using namespace llvm::omp::target::ompt;
 
diff --git a/openmp/libomptarget/plugins-nextgen/common/src/PluginInterface.cpp b/openmp/libomptarget/plugins-nextgen/common/src/PluginInterface.cpp
index 3b0b7de86a926..477e0cad06fd5 100644
--- a/openmp/libomptarget/plugins-nextgen/common/src/PluginInterface.cpp
+++ b/openmp/libomptarget/plugins-nextgen/common/src/PluginInterface.cpp
@@ -20,7 +20,7 @@
 #include "omptargetplugin.h"
 
 #ifdef OMPT_SUPPORT
-#include "OmptCallback.h"
+#include "OpenMP/OMPT/Callback.h"
 #include "omp-tools.h"
 #endif
 
diff --git a/openmp/libomptarget/plugins-nextgen/cuda/src/rtl.cpp b/openmp/libomptarget/plugins-nextgen/cuda/src/rtl.cpp
index 97e49addc5608..698517179e4cd 100644
--- a/openmp/libomptarget/plugins-nextgen/cuda/src/rtl.cpp
+++ b/openmp/libomptarget/plugins-nextgen/cuda/src/rtl.cpp
@@ -20,7 +20,7 @@
 #include "Shared/Environment.h"
 
 #include "GlobalHandler.h"
-#include "OmptCallback.h"
+#include "OpenMP/OMPT/Callback.h"
 #include "PluginInterface.h"
 
 #include "llvm/BinaryFormat/ELF.h"
diff --git a/openmp/libomptarget/plugins-nextgen/generic-elf-64bit/src/rtl.cpp b/openmp/libomptarget/plugins-nextgen/generic-elf-64bit/src/rtl.cpp
index c0107c1f14f76..e1706cfb2cbf1 100644
--- a/openmp/libomptarget/plugins-nextgen/generic-elf-64bit/src/rtl.cpp
+++ b/openmp/libomptarget/plugins-nextgen/generic-elf-64bit/src/rtl.cpp
@@ -20,7 +20,7 @@
 #include "Shared/Environment.h"
 
 #include "GlobalHandler.h"
-#include "OmptCallback.h"
+#include "OpenMP/OMPT/Callback.h"
 #include "PluginInterface.h"
 #include "omptarget.h"
 
diff --git a/openmp/libomptarget/src/OmptCallback.cpp b/openmp/libomptarget/src/OmptCallback.cpp
index 983939090df2e..a45d1a0f282ac 100644
--- a/openmp/libomptarget/src/OmptCallback.cpp
+++ b/openmp/libomptarget/src/OmptCallback.cpp
@@ -20,9 +20,9 @@
 
 #include "Shared/Debug.h"
 
-#include "OmptCallback.h"
-#include "OmptConnector.h"
-#include "OmptInterface.h"
+#include "OpenMP/OMPT/Callback.h"
+#include "OpenMP/OMPT/Connector.h"
+#include "OpenMP/OMPT/Interface.h"
 
 #undef DEBUG_PREFIX
 #define DEBUG_PREFIX "OMPT"
diff --git a/openmp/libomptarget/src/device.cpp b/openmp/libomptarget/src/device.cpp
index 87ee480825217..742ab156da317 100644
--- a/openmp/libomptarget/src/device.cpp
+++ b/openmp/libomptarget/src/device.cpp
@@ -11,8 +11,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "device.h"
-#include "OmptCallback.h"
-#include "OmptInterface.h"
+#include "OpenMP/OMPT/Callback.h"
+#include "OpenMP/OMPT/Interface.h"
 #include "omptarget.h"
 #include "private.h"
 #include "rtl.h"
diff --git a/openmp/libomptarget/src/interface.cpp b/openmp/libomptarget/src/interface.cpp
index 8a1dcf577f1ba..73b873870eb68 100644
--- a/openmp/libomptarget/src/interface.cpp
+++ b/openmp/libomptarget/src/interface.cpp
@@ -11,8 +11,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "OmptCallback.h"
-#include "OmptInterface.h"
+#include "OpenMP/OMPT/Interface.h"
+#include "OpenMP/OMPT/Callback.h"
 #include "device.h"
 #include "omptarget.h"
 #include "private.h"
diff --git a/openmp/libomptarget/src/omptarget.cpp b/openmp/libomptarget/src/omptarget.cpp
index f4b244aac13ae..96c27e417e79a 100644
--- a/openmp/libomptarget/src/omptarget.cpp
+++ b/openmp/libomptarget/src/omptarget.cpp
@@ -12,8 +12,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "omptarget.h"
-#include "OmptCallback.h"
-#include "OmptInterface.h"
+#include "OpenMP/OMPT/Callback.h"
+#include "OpenMP/OMPT/Interface.h"
 #include "device.h"
 #include "private.h"
 #include "rtl.h"
diff --git a/openmp/libomptarget/src/rtl.cpp b/openmp/libomptarget/src/rtl.cpp
index 6e012bae8a6ac..2a89eebcc0adb 100644
--- a/openmp/libomptarget/src/rtl.cpp
+++ b/openmp/libomptarget/src/rtl.cpp
@@ -12,7 +12,7 @@
 
 #include "llvm/Object/OffloadBinary.h"
 
-#include "OmptCallback.h"
+#include "OpenMP/OMPT/Callback.h"
 #include "device.h"
 #include "private.h"
 #include "rtl.h"