| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Truls | - | Norwegian, Swedish | ||
| Truman | TROO-mən | English | ||
| Tryggve | - | Swedish | ||
| Tryggvi | - | Icelandic, Ancient Scandinavian | ||
| Trygve | - | Swedish, Norwegian, Danish | ||
| Trystan | - | Welsh | ||
| Tsetsiliya | tsye-TSEE-lee-yah | Russian | ||
| Tshering | - | Tibetan, Bhutanese | ||
| Tsholofelo | - | Southern African, Tswana | ||
| Tsubaki | tsoo-bah-kee | Japanese | ||
| Tsubame | tsoo-bah-me | Japanese (Rare) | ||
| Tsubasa | tsoo-bah-sah | Japanese | ||
| Tsukiko | tsoo-kee-ko | Japanese | ||
| Tu | - | Chinese | ||
| TuĞBa | - | Turkish |