Cat Island
- Cat Island (Antarctica)
- Cat Island (Louisiana)
- Cat Island (Massachusetts)
- Cat Island (Mississippi)
- Cat Island (Rodrigues)
- Cat Island (Tasmania)
- Cat Island (Wisconsin)
- Cat Island National Wildlife Refuge
- Cat Island, The Bahamas
- Cat islands in Japan
- Cát Bà Island
- Sea Islands
- Walter Jon Williams
- Wild Cat Island