Index: clang-tools-extra/trunk/clang-tidy/objc/PropertyDeclarationCheck.cpp
===================================================================
--- clang-tools-extra/trunk/clang-tidy/objc/PropertyDeclarationCheck.cpp
+++ clang-tools-extra/trunk/clang-tidy/objc/PropertyDeclarationCheck.cpp
@@ -217,6 +217,12 @@
   assert(MatchedDecl->getName().size() > 0);
   auto *DeclContext = MatchedDecl->getDeclContext();
   auto *CategoryDecl = llvm::dyn_cast<ObjCCategoryDecl>(DeclContext);
+
+  auto AcronymsRegex =
+      llvm::Regex("^" + AcronymsGroupRegex(EscapedAcronyms) + "$");
+  if (AcronymsRegex.match(MatchedDecl->getName())) {
+    return;
+  }
   if (CategoryDecl != nullptr &&
       hasCategoryPropertyPrefix(MatchedDecl->getName())) {
     if (!prefixedPropertyNameValid(MatchedDecl->getName(), EscapedAcronyms) ||
Index: clang-tools-extra/trunk/test/clang-tidy/objc-property-declaration-custom.m
===================================================================
--- clang-tools-extra/trunk/test/clang-tidy/objc-property-declaration-custom.m
+++ clang-tools-extra/trunk/test/clang-tidy/objc-property-declaration-custom.m
@@ -14,4 +14,5 @@
 // CHECK-MESSAGES: :[[@LINE-1]]:40: warning: property name 'ABC_custom_prefix' not using lowerCamelCase style or not prefixed in a category, according to the Apple Coding Guidelines [objc-property-declaration]
 @property(assign, nonatomic) int GIFIgnoreStandardAcronym;
 // CHECK-MESSAGES: :[[@LINE-1]]:34: warning: property name 'GIFIgnoreStandardAcronym' not using lowerCamelCase style or not prefixed in a category, according to the Apple Coding Guidelines [objc-property-declaration]
+@property(strong, nonatomic) NSString *TGIF;
 @end
Index: clang-tools-extra/trunk/test/clang-tidy/objc-property-declaration.m
===================================================================
--- clang-tools-extra/trunk/test/clang-tidy/objc-property-declaration.m
+++ clang-tools-extra/trunk/test/clang-tidy/objc-property-declaration.m
@@ -21,6 +21,7 @@
 @property(assign, nonatomic) int enable2GBackgroundFetch;
 @property(assign, nonatomic) int shouldUseCFPreferences;
 @property(assign, nonatomic) int enableGLAcceleration;
+@property(assign, nonatomic) int ID;
 @end
 
 @interface Foo (Bar)