| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Tanzi | TAN-zee | English (Rare) | ||
| Tarina | tahr-EEN-ə | English (Rare) | ||
| Tatton | TAT-ən | English (Rare) | ||
| Tawnee | TAW-nee | English (Rare) | ||
| Tawnie | TAW-nee | English (Rare) | ||
| Teal | TEEL | English (Rare) | ||
| Teale | TEEL | English (Rare) | ||
| Tempest | TEM-pəst | English (Rare) | ||
| Temple | TEM-pəl | English (Rare) | ||
| Tennyson | TEN-ə-sən | English (Rare) | ||
| Thane | THAYN | English (Rare) | ||
| Thecla | - | Dutch (Rare), Late Greek (Latinized) | ||
| Thekla | - | German (Rare), Greek (Rare), Late Greek | ||
| Theobald | THEE-ə-bawld (English) | English (Rare), Ancient Germanic | ||
| Theofilus | - | Dutch (Rare) |