| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Tiernan | - | Irish | ||
| Tierney | TEER-nee | Irish, English (Rare) | ||
| Tierra | - | Various | ||
| Tiffani | TIF-ə-nee | English | ||
| Tiffany | TIF-ə-nee | English | ||
| Tiffiny | TIF-ə-nee | English (Rare) | ||
| Tiger | TIE-gər | English (Rare) | ||
| TigernÁN | - | Irish | ||
| Tigernach | - | Irish | ||
| Tighe | - | Irish | ||
| TighearnÁN | TEER-nawn | Irish | ||
| Tighearnach | TEER-nakh | Irish | ||
| Tihana | - | Croatian, Serbian | ||
| Tihomir | - | Croatian, Bulgarian, Serbian, Macedonian | ||
| Tiia | TEE:-ah | Finnish |