| Taulas | Latin name 'Tulas,' possibly meaning 'from Tula' or 'of Tula.' |
| Tauleas | Derived from the Old French 'tauleas,' meaning 'tailor' or 'seamster.' |
| Taximagulus | Latin name 'Taximagulus,' meaning 'tax collector' or 'public official.' |
| Taytum | Possibly derived from the Old English 'tætum,' meaning 'gift' or 'treasure.' |
| Tchad | Protector Defender |
| Tecguaret | Latin name 'Tecguaret,' possibly meaning 'of the Tecguari people' or 'from Tecguari.' |
| Tege | Derived from the Old English 'tege,' meaning 'warrior' or 'battle-friend.' |
| Tegernacus | Latin name 'Tegernacus,' meaning 'of the Tegernach people' or 'from Tegernach.' |
| Tegernacvs | Possibly derived from the Latin 'Tegernacvs,' meaning 'of the Tegernach people' or 'from Tegernach.' |
| Tegernomali | Derived from the Old English 'Tegernomali,' meaning 'of the Tegernach people' or 'from Tegernach.' |
| Tegwared | Possibly derived from the Old English 'Tegwared,' meaning 'warrior' or 'battle-friend.' |
| Teitri | Derived from the Old English 'teitri,' meaning 'of the Teitri people' or 'from Teitri.' |
| Tejpaul | A name meaning protector of light. |
| Tenison | Possibly derived from the Old English 'tenison,' meaning 'tension' or 'strife.' |
| Tennison | Derived from the Old English 'tennison,' meaning 'tension' or 'strife.' |
| Teobba | Possibly derived from the Old English 'teobba,' meaning 'gift' or 'treasure.' |
| Teoda | Derived from the Old English 'teoda,' meaning 'people' or 'nation.' |
| Teodec | Possibly derived from the Old English 'teodec,' meaning 'people' or 'nation.' |
| Teorra | Derived from Old English, possibly meaning 'ruler' or 'leader' |
| Teotta | Possibly derived from Old English, meaning 'ruler of the people' |
| Teoweald | Old English name, meaning 'ruler of the people' |
| Teowulf | Old English name, meaning 'ruler of the people' |
| Terral | Derived from Latin, meaning 'of the earth' |
| Terriel | Derived from Old French, meaning 'of the earth' |
| Terrol | Derived from Old French, meaning 'of the earth' |
| Teudiric | Old English name, meaning 'ruler of the people' |
| Teudur | Derived from Old English, meaning 'ruler of the people' |
| Teudus | Derived from Old English, meaning 'ruler of the people' |
| Texon | From the State of Texas |
| Teyrn | Derived from Old English, meaning 'ruler' or 'leader' |
| Teyrnfal | Derived from Old English, meaning 'ruler of the people' |
| Teyrnog | Derived from Old English, meaning 'ruler of the people' |
| Teyte | Cheerful; Bright; Glad |
| Tibbi | Derived from 'tib', meaning 'tib', a type of plant. |
| Tica | Derived from 'tika', meaning 'tika', a type of plant. |
| Ticcea | Derived from 'tika', meaning 'tika', a type of plant. |
| Tida | Derived from 'tida', meaning 'tide' or 'sea'. |
| Tidfrith | Derived from 'tid', meaning 'tide' or 'sea', and 'frith', meaning 'peace'. |
| Tidhe | Derived from 'tid', meaning 'tide' or 'sea'. |
| Tidhelm | Derived from 'tid', meaning 'tide' or 'sea', and 'helm', meaning 'helmet'. |