diff --git a/sdk/lib/js_util/js_util.dart b/sdk/lib/js_util/js_util.dart
index 5dca72d6c7b..9af9ea61be9 100644
--- a/sdk/lib/js_util/js_util.dart
+++ b/sdk/lib/js_util/js_util.dart
@@ -64,6 +64,9 @@ Object _convertDataTree(Object data) {
   return _convert(data)!;
 }
 
+@pragma('dart2js:tryInline')
+Object get globalThis => JS('', 'globalThis');
+
 T newObject<T>() => JS('=Object', '{}');
 
 bool hasProperty(Object o, Object name) => JS('bool', '# in #', name, o);
diff --git a/tests/lib/js/js_util/properties_test.dart b/tests/lib/js/js_util/properties_test.dart
index 84a09c8947a..5f718a6f1ac 100644
--- a/tests/lib/js/js_util/properties_test.dart
+++ b/tests/lib/js/js_util/properties_test.dart
@@ -189,8 +189,21 @@ main() {
     function Five(a, b, c, d, e) {
       this.count = 5;
     }
+
+    globalThis.globalKey = 'foo';
     """);
 
+  group('globalThis', () {
+    test('create', () {
+      expect(identical(js_util.globalThis, js_util.globalThis), isTrue);
+    });
+
+    test('isGlobalThis', () {
+      expect(js_util.hasProperty(js_util.globalThis, 'One'), isTrue);
+      expect(js_util.getProperty(js_util.globalThis, 'globalKey'), 'foo');
+    });
+  });
+
   group('newObject', () {
     test('create', () {
       expect(identical(js_util.newObject(), js_util.newObject()), isFalse);
diff --git a/tests/lib_2/js/js_util/properties_test.dart b/tests/lib_2/js/js_util/properties_test.dart
index c19fe145855..2b0af1049cd 100644
--- a/tests/lib_2/js/js_util/properties_test.dart
+++ b/tests/lib_2/js/js_util/properties_test.dart
@@ -191,8 +191,21 @@ main() {
     function Five(a, b, c, d, e) {
       this.count = 5;
     }
+
+    globalThis.globalKey = 'foo';
     """);
 
+  group('globalThis', () {
+    test('create', () {
+      expect(identical(js_util.globalThis, js_util.globalThis), isTrue);
+    });
+
+    test('isGlobalThis', () {
+      expect(js_util.hasProperty(js_util.globalThis, 'One'), isTrue);
+      expect(js_util.getProperty(js_util.globalThis, 'globalKey'), 'foo');
+    });
+  });
+
   group('newObject', () {
     test('create', () {
       expect(identical(js_util.newObject(), js_util.newObject()), isFalse);