| 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 | |
| Teodor | | te-AW-dawr (Polish), TE-o-dor (Croatian) | Swedish, Norwegian, Danish, Romanian, Czech, Slovak, Polish, Serbian, Croatian, Slovene, Hungarian, | |
| Teodora | | te-o-DAW-rah (Italian), te-o-DHO-rah (Spanish), te-aw-DAW-rah (Polish) | Italian, Spanish, Portuguese, Swedish, Romanian, Polish, Bulgarian, Macedonian, Serbian | |
| Tereza | | te-REZ-ah (Romanian) | Czech, Portuguese (Brazilian), Bulgarian, Romanian | |
| Theodor | | - | German, Swedish, Norwegian, Danish, Czech, Romanian | |
| Tiberiu | | - | Romanian | |
| Timotei | | - | Bulgarian, Romanian | |
| Toma (2) | | TO-mah (Croatian, Serbian) | Romanian, Croatian, Serbian, Bulgarian, Macedonian, Georgian | |
| Traian | | - | Romanian | |
| Tudor (2) | | - | Romanian | |