| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Tullius | - | Ancient Roman | ||
| Tutankhamon | too-tahng-KAH-mən (English) | Ancient Egyptian | ||
| Tycho | TIE-ko (English) | Ancient Greek (Latinized) | ||
| Tychon | - | Ancient Greek | ||
| Ulrich | UWL-rikh (German) | German, French, Ancient Germanic | ||
| Unnr | - | Ancient Scandinavian | ||
| VÍGdÍS | - | Ancient Scandinavian | ||
| VÍGi | - | Ancient Scandinavian | ||
| VÍKingr | - | Ancient Scandinavian | ||
| ValdÍS | - | Ancient Scandinavian, Icelandic | ||
| ValdimÁRr | - | Ancient Scandinavian | ||
| Valens | - | Ancient Roman | ||
| Valentina | vah-len-TEE-nah (Italian), vah-lyen-TEE-nah (Russian), vah-leen-TEE-nah (Russian) | Italian, Russian, Slovene, Croatian, Macedonian, Romanian, Spanish, Ancient Roman | ||
| Valentinianus | - | Ancient Roman | ||
| Valentinus | - | Ancient Roman |