Index: clang-tools-extra/clang-tidy/readability/BracesAroundStatementsCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/readability/BracesAroundStatementsCheck.cpp
+++ clang-tools-extra/clang-tidy/readability/BracesAroundStatementsCheck.cpp
@@ -193,7 +193,7 @@
   // token, the check inserts "\n}" right before that token.
   // 3) Otherwise the check finds the end of line (possibly after some block or
   // line comments) and inserts "\n}" right before that EOL.
-  if (!S || isa<CompoundStmt>(S)) {
+  if (!S || isa<CompoundStmt>(S) || isa<AttributedStmt>(S)) {
     // Already inside braces.
     return false;
   }
Index: clang-tools-extra/test/clang-tidy/checkers/readability-braces-around-statements-attributes.cpp
===================================================================
--- /dev/null
+++ clang-tools-extra/test/clang-tidy/checkers/readability-braces-around-statements-attributes.cpp
@@ -0,0 +1,15 @@
+// RUN: %check_clang_tidy  -std=c++20-or-later %s readability-braces-around-statements %t
+
+void test(bool b) {
+  if (b) {
+    return;
+  }
+  if (b) [[likely]] {
+    // CHECK-FIXES-NOT: if (b) { {{[[][[]}}likely{{[]][]]}} {
+    return;
+  }
+  if (b) [[unlikely]] {
+    // CHECK-FIXES-NOT: if (b) { {{[[][[]}}unlikely{{[]][]]}} {
+    return;
+  }
+}