| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| TIAGO | - | Portuguese | ||
| TIARNÁN | - | Irish | ||
| TIARNACH | - | Irish | ||
| TIBERIU | - | Romanian | ||
| TIBERIUS | ti-BE-ri-uws | Ancient Roman | ||
| TIBOR | - | Hungarian, Czech, Slovak | ||
| TIBORC | - | Hungarian | ||
| TIBURCIO | - | Spanish, Portuguese | ||
| TIBURTIUS | - | Ancient Roman | ||
| TICHAONA | - | Southern African, Shona | ||
| TIEDE | TEE-də (Dutch) | Frisian, Dutch | ||
| TIEDEMANN | - | German (Archaic) | ||
| TIELO | - | Medieval German | ||
| TIERNAN | - | Irish | ||
| TIES | - | Dutch |