diff --git a/clang-tools-extra/clang-tidy/objc/AvoidSpinlockCheck.cpp b/clang-tools-extra/clang-tidy/darwin/AvoidSpinlockCheck.cpp
similarity index 96%
rename from clang-tools-extra/clang-tidy/objc/AvoidSpinlockCheck.cpp
rename to clang-tools-extra/clang-tidy/darwin/AvoidSpinlockCheck.cpp
index ac3d2b288efa..2a52725c19c8 100644
--- a/clang-tools-extra/clang-tidy/objc/AvoidSpinlockCheck.cpp
+++ b/clang-tools-extra/clang-tidy/darwin/AvoidSpinlockCheck.cpp
@@ -14,7 +14,7 @@ using namespace clang::ast_matchers;
 
 namespace clang {
 namespace tidy {
-namespace objc {
+namespace darwin {
 
 void AvoidSpinlockCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(
@@ -31,6 +31,6 @@ void AvoidSpinlockCheck::check(const MatchFinder::MatchResult &Result) {
        "deprecated OSSpinLock");
 }
 
-}  // namespace objc
+}  // namespace darwin
 }  // namespace tidy
 }  // namespace clang
diff --git a/clang-tools-extra/clang-tidy/objc/AvoidSpinlockCheck.h b/clang-tools-extra/clang-tidy/darwin/AvoidSpinlockCheck.h
similarity index 73%
rename from clang-tools-extra/clang-tidy/objc/AvoidSpinlockCheck.h
rename to clang-tools-extra/clang-tidy/darwin/AvoidSpinlockCheck.h
index dd409625f3a1..6ea10c550d90 100644
--- a/clang-tools-extra/clang-tidy/objc/AvoidSpinlockCheck.h
+++ b/clang-tools-extra/clang-tidy/darwin/AvoidSpinlockCheck.h
@@ -6,20 +6,20 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_OBJC_AVOID_SPINLOCK_H
-#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_OBJC_AVOID_SPINLOCK_H
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_DARWIN_AVOIDSPINLOCKCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_DARWIN_AVOIDSPINLOCKCHECK_H
 
 #include "../ClangTidyCheck.h"
 
 namespace clang {
 namespace tidy {
-namespace objc {
+namespace darwin {
 
 /// Finds usages of OSSpinlock, which is deprecated due to potential livelock
 /// problems.
 ///
 /// For the user-facing documentation see:
-/// http://clang.llvm.org/extra/clang-tidy/checks/objc-avoid-spinlock.html
+/// http://clang.llvm.org/extra/clang-tidy/checks/darwin-avoid-spinlock.html
 class AvoidSpinlockCheck : public ClangTidyCheck {
  public:
   AvoidSpinlockCheck(StringRef Name, ClangTidyContext *Context)
@@ -28,8 +28,8 @@ class AvoidSpinlockCheck : public ClangTidyCheck {
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
-}  // namespace objc
+}  // namespace darwin
 }  // namespace tidy
 }  // namespace clang
 
-#endif  // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_OBJC_AVOID_SPINLOCK_H
+#endif  // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_DARWIN_AVOIDSPINLOCKCHECK_H
diff --git a/clang-tools-extra/clang-tidy/darwin/CMakeLists.txt b/clang-tools-extra/clang-tidy/darwin/CMakeLists.txt
index 5a34bd1ee495..c650efb2a5f2 100644
--- a/clang-tools-extra/clang-tidy/darwin/CMakeLists.txt
+++ b/clang-tools-extra/clang-tidy/darwin/CMakeLists.txt
@@ -1,6 +1,7 @@
 set(LLVM_LINK_COMPONENTS support)
 
 add_clang_library(clangTidyDarwinModule
+  AvoidSpinlockCheck.cpp
   DarwinTidyModule.cpp
   DispatchOnceNonstaticCheck.cpp
 
diff --git a/clang-tools-extra/clang-tidy/darwin/DarwinTidyModule.cpp b/clang-tools-extra/clang-tidy/darwin/DarwinTidyModule.cpp
index 5c10cdfe9e6d..d11ef1fa01c9 100644
--- a/clang-tools-extra/clang-tidy/darwin/DarwinTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/darwin/DarwinTidyModule.cpp
@@ -9,6 +9,7 @@
 #include "../ClangTidy.h"
 #include "../ClangTidyModule.h"
 #include "../ClangTidyModuleRegistry.h"
+#include "AvoidSpinlockCheck.h"
 #include "DispatchOnceNonstaticCheck.h"
 
 namespace clang {
@@ -18,6 +19,8 @@ namespace darwin {
 class DarwinModule : public ClangTidyModule {
 public:
   void addCheckFactories(ClangTidyCheckFactories &CheckFactories) override {
+    CheckFactories.registerCheck<AvoidSpinlockCheck>(
+        "darwin-avoid-spinlock");
     CheckFactories.registerCheck<DispatchOnceNonstaticCheck>(
         "darwin-dispatch-once-nonstatic");
   }
diff --git a/clang-tools-extra/clang-tidy/objc/CMakeLists.txt b/clang-tools-extra/clang-tidy/objc/CMakeLists.txt
index 0a12e4a850d5..68dda6530f7f 100644
--- a/clang-tools-extra/clang-tidy/objc/CMakeLists.txt
+++ b/clang-tools-extra/clang-tidy/objc/CMakeLists.txt
@@ -2,7 +2,6 @@ set(LLVM_LINK_COMPONENTS support)
 
 add_clang_library(clangTidyObjCModule
   AvoidNSErrorInitCheck.cpp
-  AvoidSpinlockCheck.cpp
   ForbiddenSubclassingCheck.cpp
   MissingHashCheck.cpp
   ObjCTidyModule.cpp
diff --git a/clang-tools-extra/clang-tidy/objc/ObjCTidyModule.cpp b/clang-tools-extra/clang-tidy/objc/ObjCTidyModule.cpp
index c9b57d5e2c81..69913125451c 100644
--- a/clang-tools-extra/clang-tidy/objc/ObjCTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/objc/ObjCTidyModule.cpp
@@ -10,7 +10,6 @@
 #include "../ClangTidyModule.h"
 #include "../ClangTidyModuleRegistry.h"
 #include "AvoidNSErrorInitCheck.h"
-#include "AvoidSpinlockCheck.h"
 #include "ForbiddenSubclassingCheck.h"
 #include "MissingHashCheck.h"
 #include "PropertyDeclarationCheck.h"
@@ -27,8 +26,6 @@ public:
   void addCheckFactories(ClangTidyCheckFactories &CheckFactories) override {
     CheckFactories.registerCheck<AvoidNSErrorInitCheck>(
         "objc-avoid-nserror-init");
-    CheckFactories.registerCheck<AvoidSpinlockCheck>(
-        "objc-avoid-spinlock");
     CheckFactories.registerCheck<ForbiddenSubclassingCheck>(
         "objc-forbidden-subclassing");
     CheckFactories.registerCheck<MissingHashCheck>(
diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
index b3a245d9494e..2ba944bc7d0e 100644
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -115,6 +115,9 @@ Improvements to clang-tidy
   Now also checks if any calls to ``pthread_*`` functions expect negative return
   values.
 
+- The 'objc-avoid-spinlock' check was renamed to :doc:`darwin-avoid-spinlock
+  <clang-tidy/checks/darwin-avoid-spinlock>`
+
 Improvements to include-fixer
 -----------------------------
 
diff --git a/clang-tools-extra/docs/clang-tidy/checks/objc-avoid-spinlock.rst b/clang-tools-extra/docs/clang-tidy/checks/darwin-avoid-spinlock.rst
similarity index 79%
rename from clang-tools-extra/docs/clang-tidy/checks/objc-avoid-spinlock.rst
rename to clang-tools-extra/docs/clang-tidy/checks/darwin-avoid-spinlock.rst
index d1b11fcbab68..fd1f5d294a47 100644
--- a/clang-tools-extra/docs/clang-tidy/checks/objc-avoid-spinlock.rst
+++ b/clang-tools-extra/docs/clang-tidy/checks/darwin-avoid-spinlock.rst
@@ -1,7 +1,7 @@
-.. title:: clang-tidy - objc-avoid-spinlock
+.. title:: clang-tidy - darwin-avoid-spinlock
 
-objc-avoid-spinlock
-===================
+darwin-avoid-spinlock
+=====================
 
 Finds usages of ``OSSpinlock``, which is deprecated due to potential livelock
 problems. 
diff --git a/clang-tools-extra/docs/clang-tidy/checks/list.rst b/clang-tools-extra/docs/clang-tidy/checks/list.rst
index 36ecb0a4fb84..ae7ca492b674 100644
--- a/clang-tools-extra/docs/clang-tidy/checks/list.rst
+++ b/clang-tools-extra/docs/clang-tidy/checks/list.rst
@@ -212,6 +212,7 @@ Clang-Tidy Checks
    cppcoreguidelines-pro-type-vararg
    cppcoreguidelines-slicing
    cppcoreguidelines-special-member-functions
+   darwin-avoid-spinlock
    darwin-dispatch-once-nonstatic
    fuchsia-default-arguments-calls
    fuchsia-default-arguments-declarations
@@ -325,7 +326,6 @@ Clang-Tidy Checks
    mpi-buffer-deref
    mpi-type-mismatch
    objc-avoid-nserror-init
-   objc-avoid-spinlock
    objc-forbidden-subclassing
    objc-missing-hash
    objc-property-declaration
diff --git a/clang-tools-extra/test/clang-tidy/objc-avoid-spinlock.m b/clang-tools-extra/test/clang-tidy/darwin-avoid-spinlock.m
similarity index 78%
rename from clang-tools-extra/test/clang-tidy/objc-avoid-spinlock.m
rename to clang-tools-extra/test/clang-tidy/darwin-avoid-spinlock.m
index f9f05cb05a28..c870e0a0fed0 100644
--- a/clang-tools-extra/test/clang-tidy/objc-avoid-spinlock.m
+++ b/clang-tools-extra/test/clang-tidy/darwin-avoid-spinlock.m
@@ -1,4 +1,4 @@
-// RUN: %check_clang_tidy %s objc-avoid-spinlock %t
+// RUN: %check_clang_tidy %s darwin-avoid-spinlock %t
 
 typedef int OSSpinLock;
 
@@ -6,10 +6,10 @@ typedef int OSSpinLock;
 - (void)f {
     int i = 1;
     OSSpinlockLock(&i);
-    // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use os_unfair_lock_lock() or dispatch queue APIs instead of the deprecated OSSpinLock [objc-avoid-spinlock]
+    // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use os_unfair_lock_lock() or dispatch queue APIs instead of the deprecated OSSpinLock [darwin-avoid-spinlock]
     OSSpinlockTry(&i);
-    // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use os_unfair_lock_lock() or dispatch queue APIs instead of the deprecated OSSpinLock [objc-avoid-spinlock]
+    // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use os_unfair_lock_lock() or dispatch queue APIs instead of the deprecated OSSpinLock [darwin-avoid-spinlock]
     OSSpinlockUnlock(&i);
-    // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use os_unfair_lock_lock() or dispatch queue APIs instead of the deprecated OSSpinLock [objc-avoid-spinlock]
+    // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use os_unfair_lock_lock() or dispatch queue APIs instead of the deprecated OSSpinLock [darwin-avoid-spinlock]
 }
 @end