| Terenzio | | - | Italian | |
| Teresa | | te-RE-sah (Spanish, Polish), te-RE-zah (Italian, German), TE-re-sah (Finnish), tə-REE-sə (English), tə-REE-zə (English) | Spanish, Portuguese, Italian, Finnish, Polish, German, Swedish, Norwegian, Danish, English | |
| Terzo | | TER-tso | Italian | |
| Timoteo | | tee-mo-TE-o (Italian, Spanish) | Italian, Spanish, Portuguese | |
| Tina | | TEE-nə (English), TEE-nah (Italian, Dutch) | English, Italian, Dutch, Slovene, Croatian, Macedonian | |
| Tino | | TEE-no | Italian | |
| Tito | | TEE-to (Italian, Spanish) | Italian, Spanish, Portuguese | |
| Tiziana | | tee-TSYAH-nah | Italian | |
| Tiziano | | tee-TSYAH-no | Italian | |
| Tommaso | | tom-MAH-zo | Italian | |
| Tonina | | - | Italian | |
| Tonino | | - | Italian | |
| Tonio | | - | Italian | |
| Tore (2) | | - | Italian | |
| Tullia | | - | Italian, Ancient Roman | |