diff --git a/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp b/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
index 6ec054d5eac05..cfa936415d634 100644
--- a/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
+++ b/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
@@ -5498,6 +5498,17 @@ TypeSystemClang::GetNumChildren(lldb::opaque_compiler_type_t type,
 }
 
 CompilerType TypeSystemClang::GetBuiltinTypeByName(ConstString name) {
+  StringRef name_ref = name.GetStringRef();
+  llvm::Regex re("^(unsigned )?_BitInt\\((.*)\\)$");
+  llvm::SmallVector<llvm::StringRef, 4> matches;
+  bool is_bitint = re.match(name_ref, &matches);
+  if (is_bitint && matches.size() == 3) {
+    bool is_unsigned = matches[1] == "unsigned ";
+    llvm::APInt ap_bit_size;
+    if (!matches[2].getAsInteger(10, ap_bit_size))
+      return GetType(getASTContext().getBitIntType(is_unsigned,
+                                                   ap_bit_size.getZExtValue()));
+  }
   return GetBasicType(GetBasicTypeEnumeration(name));
 }
 
diff --git a/lldb/test/API/python_api/sbtype_basic_type/TestSBTypeBasicType.py b/lldb/test/API/python_api/sbtype_basic_type/TestSBTypeBasicType.py
index f8594dfc6b78d..99617cc68d19f 100644
--- a/lldb/test/API/python_api/sbtype_basic_type/TestSBTypeBasicType.py
+++ b/lldb/test/API/python_api/sbtype_basic_type/TestSBTypeBasicType.py
@@ -36,3 +36,17 @@ def test(self):
         # Check the size of the chosen aliases of basic types.
         self.assertEqual(self.target().FindFirstType("__int128_t").size, 16)
         self.assertEqual(self.target().FindFirstType("__uint128_t").size, 16)
+
+        # "_BitInt(...)" and "unsigned _BitInt(...)" are GNU C compiler extensions
+        # that are supported by LLVM C(++) compiler as well.
+        #
+        # We check that LLDB is able to map the names of these types
+        # (as reported by LLDB for variables of this type)
+        # to the corresponding SBType objects.
+        self.assertEqual(self.target().FindFirstType("_BitInt(65)").name, "_BitInt(65)")
+        self.assertEqual(self.target().FindFirstType("_BitInt(65)").size, 16)
+        self.assertEqual(
+            self.target().FindFirstType("unsigned _BitInt(65)").name,
+            "unsigned _BitInt(65)",
+        )
+        self.assertEqual(self.target().FindFirstType("unsigned _BitInt(65)").size, 16)