| Tjaard | | TYAH:RT (Dutch) | Frisian, Dutch | |
| Tjeerd | | TYAY:RT (Dutch) | Frisian, Dutch | |
| Tlaloc | | TLAH-lok | Aztec And Toltec Mythology | |
| ToŠE | | TO-she | Macedonian | |
| ToÑO | | - | Spanish | |
| Tobias | | to-BEE-ahs (German), tə-BIE-əs (English) | Biblical, German, Swedish, Norwegian, Danish, English, Biblical Latin, Biblical Greek | |
| Todor | | - | Bulgarian, Serbian, Macedonian | |
| Todorka | | - | Bulgarian, Macedonian | |
| Tollak | | - | Norwegian | |
| TomÁS | | to-MAHS (Spanish), too-MASH (Portuguese) | Spanish, Portuguese, Irish | |
| TomÀS | | - | Catalan | |
| Toma (1) | | - | Russian | |
| Toma (2) | | TO-mah (Croatian, Serbian) | Romanian, Croatian, Serbian, Bulgarian, Macedonian, Georgian | |
| Tomas | | - | Swedish, Norwegian, Lithuanian | |
| Tomasa | | to-MAH-sah | Spanish | |