diff --git a/packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts b/packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts
index 4a09f956145f7..f5fa84835d910 100644
--- a/packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts
+++ b/packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts
@@ -1170,6 +1170,16 @@ export enum InstanceClass {
    */
   MAC2_M2PRO = 'mac2-m2pro',
 
+  /**
+   * Macintosh instances built on 2022 Mac Studio hardware powered by Apple silicon M1 Ultra processors
+   */
+  MACINTOSH2_M1_ULTRA = 'macintosh2-m1-ultra',
+
+  /**
+   * Macintosh instances built on 2022 Mac Studio hardware powered by Apple silicon M1 Ultra processors
+   */
+  MAC2_M1ULTRA = 'mac2-m1ultra',
+
   /**
    * Multi-stream video transcoding instances for resolutions up to 4K UHD, 1st generation
    */
@@ -1632,6 +1642,8 @@ export class InstanceType {
       [InstanceClass.MAC2_M2]: 'mac2-m2',
       [InstanceClass.MACINTOSH2_M2_PRO]: 'mac2-m2pro',
       [InstanceClass.MAC2_M2PRO]: 'mac2-m2pro',
+      [InstanceClass.MACINTOSH2_M1_ULTRA]: 'mac2-m1ultra',
+      [InstanceClass.MAC2_M1ULTRA]: 'mac2-m1ultra',
       [InstanceClass.VIDEO_TRANSCODING1]: 'vt1',
       [InstanceClass.VT1]: 'vt1',
       [InstanceClass.HIGH_PERFORMANCE_COMPUTING6_AMD]: 'hpc6a',
diff --git a/packages/aws-cdk-lib/aws-ec2/test/instance-type.test.ts b/packages/aws-cdk-lib/aws-ec2/test/instance-type.test.ts
new file mode 100644
index 0000000000000..97dee37418cc2
--- /dev/null
+++ b/packages/aws-cdk-lib/aws-ec2/test/instance-type.test.ts
@@ -0,0 +1,8 @@
+import { InstanceClass, InstanceSize, InstanceType } from '../lib';
+
+describe('InstanceType', () => {
+  test('mac2 m1 ultra', () => {
+    const instanceType = InstanceType.of(InstanceClass.MAC2_M1ULTRA, InstanceSize.METAL);
+    expect(instanceType.toString()).toEqual('mac2-m1ultra.metal');
+  });
+});
\ No newline at end of file