| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Ukko | OOK-ko (Finnish) | Finnish, Finnish Mythology | ||
| Ulysses | yoo-LIS-eez (English) | Roman Mythology, English | ||
| Urania | yuw-RAY-nee-ə (English) | Greek Mythology (Latinized) | ||
| Uranus | yuw-RAY-nəs (English), YUWR-ən-əs (English) | Greek Mythology (Latinized) | ||
| Urd | - | Norse Mythology | ||
| Urien | - | Welsh, Welsh Mythology, Arthurian Romance | ||
| Uther | - | Welsh Mythology, Arthurian Romance | ||
| Uthyr | - | Welsh Mythology, Arthurian Romance | ||
| Utu | - | Near Eastern Mythology |