| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Theudobald | - | Ancient Germanic | ||
| Theudofrid | - | Ancient Germanic | ||
| Theudoricus | - | Ancient Germanic (Latinized) | ||
| Theutrich | - | Ancient Germanic | ||
| Thiago | - | Portuguese (Brazilian) | ||
| Thiemo | - | German, Dutch, Ancient Germanic | ||
| Thietmar | - | Ancient Germanic | ||
| Thilo | - | German | ||
| Thoko | TO-ko | Southern African, Chewa | ||
| Thokozani | to-ko-ZAH-nee | Southern African, Chewa | ||
| 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 | ||
| Thor | THOR (English), TOR (Danish), TOOR (Swedish, Norwegian) | Norse Mythology, Danish, Swedish, Norwegian | ||
| Thora | - | Swedish, Norwegian, Danish, German | ||
| Thorben | TAWR-ben (German) | Danish, German | ||
| ThorbjØRn | - | Norwegian |