| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Tempest | TEM-pəst | English (Rare) | ||
| Temple | TEM-pəl | English (Rare) | ||
| Tennyson | TEN-ə-sən | English (Rare) | ||
| Thane | THAYN | English (Rare) | ||
| Theobald | THEE-ə-bawld (English) | English (Rare), Ancient Germanic | ||
| Thorburn | THAWR-bərn | English (Rare) | ||
| Thorley | THAWR-lee | English (Rare) | ||
| Thurstan | THUR-stən | English (Rare) | ||
| Tierney | TEER-nee | Irish, English (Rare) | ||
| Tiffiny | TIF-ə-nee | English (Rare) | ||
| Tiger | TIE-gər | English (Rare) | ||
| Timotha | TIM-ə-thə | English (Rare) | ||
| Topaz | TO-paz | English (Rare) | ||
| Topsy | TAHP-see | English (Rare) | ||
| Trafford | TRAF-ərd | English (Rare) |