| Taisiya | | tah-EE-see-yah | Russian | |
| Tamara | | tah-MAH-rah (Russian, Spanish, Italian), tə-MAHR-ə (English), TAM-ə-rə (English) | Russian, Ukrainian, Czech, Slovak, Polish, Slovene, Croatian, Serbian, Macedonian, English, Dutch, S | |
| Tanya | | TAHN-yə (English), TAN-yə (English) | Russian, English | |
| Taras | | tah-RAHS (Russian) | Ukrainian, Russian | |
| Tasha | | TASH-ə (English) | Russian, English | |
| Tatiana | | tah-TYAH-nah (Russian, Polish, Spanish, Italian), TAH-tee-ah-nah (Finnish), ta-tee-AN-ə (English), ta-TYAN-ə (English) | Russian, Slovak, Bulgarian, Romanian, Polish, Greek, Georgian, Spanish, Portuguese, Italian, Finnish | |
| Tatyana | | tah-TYAH-nah | Russian | |
| Terenti | | - | Georgian, Russian | |
| Terentiy | | - | Russian | |
| Tikhon | | TEE-khahn | Russian (Rare) | |
| Timofei | | tee-mah-FYAY | Russian | |
| Timofey | | tee-mah-FYAY | Russian | |
| Timur | | tee-MOOR (Russian) | History, Tatar, Chechen, Kazakh, Uzbek, Russian | |
| Tit | | TEET | Russian | |
| Toma (1) | | - | Russian | |