| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Thibault | tee-BO | French | ||
| Thierry | tee-e-REE | French | ||
| Thomas | TAHM-əs (English), TOM-əs (English), to-MAH (French), TO-mahs (German, Dutch), tho-MAHS (Greek) | English, French, German, Dutch, Swedish, Norwegian, Danish, Greek, Biblical, Biblical Latin, Biblica | ||
| TimothÉ | tee-mo-TE | French | ||
| TimothÉE | tee-mo-TE | French | ||
| Tiphaine | - | French | ||
| Tiphanie | - | French | ||
| Toinette | - | French | ||
| Toussaint | - | French | ||
| Tristan | TRIS-tən (English), trees-TAWN (French) | Welsh, English, French, Arthurian Romance | ||
| Ulrich | UWL-rikh (German) | German, French, Ancient Germanic | ||
| Ulysse | - | French | ||
| Urbain | - | French | ||
| VÉRÈNe | - | French | ||
| VÉRonique | ve-ro-NEEK | French |