diff --git a/clang-tools-extra/clang-tidy/google/AvoidUnderscoreInGoogletestNameCheck.cpp b/clang-tools-extra/clang-tidy/google/AvoidUnderscoreInGoogletestNameCheck.cpp
--- a/clang-tools-extra/clang-tidy/google/AvoidUnderscoreInGoogletestNameCheck.cpp
+++ b/clang-tools-extra/clang-tidy/google/AvoidUnderscoreInGoogletestNameCheck.cpp
@@ -51,8 +51,10 @@
     const Token *TestNameToken = Args->getUnexpArgument(1);
     if (!TestCaseNameToken || !TestNameToken)
       return;
-    std::string TestCaseName = PP->getSpelling(*TestCaseNameToken);
-    if (TestCaseName.find('_') != std::string::npos)
+    std::string TestCaseNameMaybeDisabled = PP->getSpelling(*TestCaseNameToken);
+    StringRef TestCaseName = TestCaseNameMaybeDisabled;
+    TestCaseName.consume_front(KDisabledTestPrefix);
+    if (TestCaseName.contains('_'))
       Check->diag(TestCaseNameToken->getLocation(),
                   "avoid using \"_\" in test case name \"%0\" according to "
                   "Googletest FAQ")
diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -234,6 +234,10 @@
   string for ``Prefix`` or ``Suffix`` options could result in the style not
   being used.
 
+- Fixed an issue in :doc:`google-avoid-underscore-in-googletest-name
+  <clang-tidy/checks/google/avoid-underscore-in-googletest-name>` when using
+  ``DISABLED_`` in the test suite name.
+
 Removed checks
 ^^^^^^^^^^^^^^
 
diff --git a/clang-tools-extra/test/clang-tidy/checkers/google/avoid-underscore-in-googletest-name.cpp b/clang-tools-extra/test/clang-tidy/checkers/google/avoid-underscore-in-googletest-name.cpp
--- a/clang-tools-extra/test/clang-tidy/checkers/google/avoid-underscore-in-googletest-name.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/google/avoid-underscore-in-googletest-name.cpp
@@ -87,21 +87,31 @@
 // CHECK-MESSAGES: :[[@LINE-1]]:14: warning: avoid using "_" in test case name "Illegal_Type_ParameterizedTestCaseName" according to Googletest FAQ [google-readability-avoid-underscore-in-googletest-name]
 
 // Underscores are allowed to disable a test with the DISABLED_ prefix.
-// https://github.com/google/googletest/blob/master/googletest/docs/faq.md#why-should-test-suite-names-and-test-names-not-contain-underscore
+// https://google.github.io/googletest/faq.html#why-should-test-suite-names-and-test-names-not-contain-underscore
 TEST(TestCaseName, TestName) {}
 TEST(TestCaseName, DISABLED_TestName) {}
+TEST(DISABLED_TestCaseName, TestName) {}
+TEST(DISABLED_TestCaseName, DISABLED_TestName) {}
 
 TEST_F(TestCaseFixtureName, TestName) {}
 TEST_F(TestCaseFixtureName, DISABLED_TestName) {}
+TEST_F(DISABLED_TestCaseFixtureName, TestName) {}
+TEST_F(DISABLED_TestCaseFixtureName, DISABLED_TestName) {}
 
 TEST_P(ParameterizedTestCaseFixtureName, TestName) {}
 TEST_P(ParameterizedTestCaseFixtureName, DISABLED_TestName) {}
+TEST_P(DISABLED_ParameterizedTestCaseFixtureName, TestName) {}
+TEST_P(DISABLED_ParameterizedTestCaseFixtureName, DISABLED_TestName) {}
 
 TYPED_TEST(TypedTestName, TestName) {}
 TYPED_TEST(TypedTestName, DISABLED_TestName) {}
+TYPED_TEST(DISABLED_TypedTestName, TestName) {}
+TYPED_TEST(DISABLED_TypedTestName, DISABLED_TestName) {}
 
 TYPED_TEST_P(TypeParameterizedTestName, TestName) {}
 TYPED_TEST_P(TypeParameterizedTestName, DISABLED_TestName) {}
+TYPED_TEST_P(DISABLED_TypeParameterizedTestName, TestName) {}
+TYPED_TEST_P(DISABLED_TypeParameterizedTestName, DISABLED_TestName) {}
 
 FRIEND_TEST(FriendTest, Is_NotChecked) {}
 FRIEND_TEST(Friend_Test, IsNotChecked) {}