Australie
Îles commençant par u
- Ubobo Island
- Ukerebagh Island
- Ulcandahi Island
- Ulgundahi Island
- Ului Island
- Ulupna Island
- Umbanganan Island
- Umeboro Island
- Umida Island
- Uncle Island
- Uncle Margie Island
- Underdown Islet
- Ungundam Island
- Unknown Island
- Upolu Cay
- Upper Island
- Upper Moscheto Island
- Uptons Island
- Urquhart Islet
- Urunga Island
- Usborne Island
- Uwins Island