Index: clang-tools-extra/clang-tidy/readability/StaticAccessedThroughInstanceCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/readability/StaticAccessedThroughInstanceCheck.cpp
+++ clang-tools-extra/clang-tidy/readability/StaticAccessedThroughInstanceCheck.cpp
@@ -39,7 +39,7 @@
 
 void StaticAccessedThroughInstanceCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(
-      memberExpr(hasDeclaration(anyOf(cxxMethodDecl(isStaticStorageClass()),
+      memberExpr(hasDeclaration(anyOf(cxxMethodDecl(isStatic()),
                                       varDecl(hasStaticStorageDuration()))))
           .bind("memberExpression"),
       this);
Index: clang-tools-extra/test/clang-tidy/checkers/readability-static-accessed-through-instance.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/readability-static-accessed-through-instance.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/readability-static-accessed-through-instance.cpp
@@ -263,3 +263,20 @@
 // CHECK-MESSAGES-NOT: :[[@LINE-1]]:10: warning: static member
 
 } // namespace Bugzilla_48758
+
+// https://bugs.llvm.org/show_bug.cgi?id=52519
+struct PR52519 {
+  static PR52519 &getInstance();
+  static int getInt();
+};
+
+int PR52519::getInt() {
+  return 42;
+}
+
+int PR52519_bar() {
+  auto &foo = PR52519::getInstance();
+  return foo.getInt();
+  // CHECK-MESSAGES: :[[@LINE-1]]:10: warning: static member accessed through instance [readability-static-accessed-through-instance]
+  // CHECK-FIXES: {{^}}  return PR52519::getInt();{{$}}
+}
Index: clang/docs/LibASTMatchersReference.html
===================================================================
--- clang/docs/LibASTMatchersReference.html
+++ clang/docs/LibASTMatchersReference.html
@@ -3322,6 +3322,19 @@
 </pre></td></tr>
 
 
+<tr><td>Matcher&lt;<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>&gt;</td><td class="name" onclick="toggle('isStatic0')"><a name="isStatic0Anchor">isStatic</a></td><td></td></tr>
+<tr><td colspan="4" class="doc" id="isStatic0"><pre>Matches if the given method declaration is static.
+
+Given
+struct A {
+  static void foo();
+  void bar();
+};
+
+cxxMethodDecl(isStatic()) matches A::foo() but not A::bar()
+</pre></td></tr>
+
+
 <tr><td>Matcher&lt;<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>&gt;</td><td class="name" onclick="toggle('isCopyAssignmentOperator0')"><a name="isCopyAssignmentOperator0Anchor">isCopyAssignmentOperator</a></td><td></td></tr>
 <tr><td colspan="4" class="doc" id="isCopyAssignmentOperator0"><pre>Matches if the given method declaration declares a copy assignment
 operator.
Index: clang/include/clang/ASTMatchers/ASTMatchers.h
===================================================================
--- clang/include/clang/ASTMatchers/ASTMatchers.h
+++ clang/include/clang/ASTMatchers/ASTMatchers.h
@@ -6003,6 +6003,19 @@
   return Node.isConst();
 }
 
+/// Matches if the given method declaration is static.
+///
+/// Given
+/// \code
+/// struct A {
+///   static void foo();
+///   void bar();
+/// };
+/// \endcode
+///
+/// cxxMethodDecl(isStatic()) matches A::foo() but not A::bar()
+AST_MATCHER(CXXMethodDecl, isStatic) { return Node.isStatic(); }
+
 /// Matches if the given method declaration declares a copy assignment
 /// operator.
 ///
Index: clang/lib/ASTMatchers/Dynamic/Registry.cpp
===================================================================
--- clang/lib/ASTMatchers/Dynamic/Registry.cpp
+++ clang/lib/ASTMatchers/Dynamic/Registry.cpp
@@ -451,6 +451,7 @@
   REGISTER_MATCHER(isSharedKind);
   REGISTER_MATCHER(isSignedInteger);
   REGISTER_MATCHER(isStandaloneDirective);
+  REGISTER_MATCHER(isStatic);
   REGISTER_MATCHER(isStaticLocal);
   REGISTER_MATCHER(isStaticStorageClass);
   REGISTER_MATCHER(isStruct);
Index: clang/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
===================================================================
--- clang/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
+++ clang/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
@@ -2017,6 +2017,17 @@
       notMatches("struct A { void foo(); };", cxxMethodDecl(isConst())));
 }
 
+TEST_P(ASTMatchersTest, IsStatic) {
+  if (!GetParam().isCXX()) {
+    return;
+  }
+
+  EXPECT_TRUE(
+      matches("struct A { static void foo(); };", cxxMethodDecl(isStatic())));
+  EXPECT_TRUE(
+      notMatches("struct A { void foo(); };", cxxMethodDecl(isStatic())));
+}
+
 TEST_P(ASTMatchersTest, IsOverride) {
   if (!GetParam().isCXX()) {
     return;