| Tacito | | tah-CHEE-to (Italian), tah-THEE-to (Spanish), tah-SEE-to (Latin American Spanish) | Italian, Spanish, Portuguese | |
| Tadeo | | tah-DE-o | Spanish | |
| Tancredo | | - | Spanish | |
| 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 | |
| TeÓDulo | | te-O-dhoo-lo | Spanish | |
| TeÓFila | | te-O-fee-lah | Spanish | |
| TeÓFilo | | te-O-fee-lo (Spanish) | Spanish, Portuguese | |
| Tecla | | TE-klah | Italian, Spanish | |
| Telmo | | - | Portuguese, Spanish | |
| Teo | | TE-o | Italian, Spanish, Croatian | |
| Teobaldo | | - | Spanish, Portuguese, Italian | |
| 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 | |
| Teodoro | | te-o-DO-ro (Italian), te-o-DHO-ro (Spanish) | Italian, Spanish, Portuguese | |
| Teodosio | | te-o-DHO-syo (Spanish) | Italian, Spanish | |
| Tercero | | ter-THE-ro (Spanish), ter-SE-ro (Latin American Spanish) | Spanish | |