Z
- Zandia: home of Brother Blood and "safe harbor" for supervillains in Teen Titans and other DC Comics titles
- Zendia: setting of the Zendian problem
- Zolon: in the Novarian series, an island thalassocracy ruled by a High Admiral.
- Zoombini Isle: The origin of the Zoombinis, featured in the Logical Journey PC puzzle game
Read more about this topic: List Of Fictional Islands