diff --git a/clang/lib/Driver/ToolChains/Darwin.cpp b/clang/lib/Driver/ToolChains/Darwin.cpp
--- a/clang/lib/Driver/ToolChains/Darwin.cpp
+++ b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -2714,6 +2714,7 @@
 
 SanitizerMask Darwin::getSupportedSanitizers() const {
   const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
+  const bool IsAArch64 = getTriple().getArch() == llvm::Triple::aarch64;
   SanitizerMask Res = ToolChain::getSupportedSanitizers();
   Res |= SanitizerKind::Address;
   Res |= SanitizerKind::PointerCompare;
@@ -2731,9 +2732,8 @@
       && !(isTargetIPhoneOS() && isIPhoneOSVersionLT(5, 0)))
     Res |= SanitizerKind::Vptr;
 
-  if (isTargetMacOS()) {
-    if (IsX86_64)
-      Res |= SanitizerKind::Thread;
+  if ((IsX86_64 || IsAArch64) && isTargetMacOS()) {
+    Res |= SanitizerKind::Thread;
   } else if (isTargetIOSSimulator() || isTargetTvOSSimulator()) {
     if (IsX86_64)
       Res |= SanitizerKind::Thread;
diff --git a/clang/test/Driver/fsanitize.c b/clang/test/Driver/fsanitize.c
--- a/clang/test/Driver/fsanitize.c
+++ b/clang/test/Driver/fsanitize.c
@@ -458,6 +458,10 @@
 
 // RUN: %clang -target x86_64-apple-darwin -fsanitize=thread %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-TSAN-X86-64-DARWIN
 // CHECK-TSAN-X86-64-DARWIN-NOT: unsupported option
+// RUN: %clang -target x86_64-apple-macos -fsanitize=thread %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-TSAN-X86-64-MACOS
+// CHECK-TSAN-X86-64-MACOS-NOT: unsupported option
+// RUN: %clang -target arm64-apple-macos -fsanitize=thread %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-TSAN-ARM64-MACOS
+// CHECK-TSAN-ARM64-MACOS-NOT: unsupported option
 
 // RUN: %clang -target x86_64-apple-iossimulator -fsanitize=thread %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-TSAN-X86-64-IOSSIMULATOR
 // CHECK-TSAN-X86-64-IOSSIMULATOR-NOT: unsupported option