| 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 |
| Thaen | Follower; Attendant Warrior |
| Thaker | A name meaning a carpenter or mason. |
| Thames | Derived from Old English, meaning 'son of Thames' or 'from the Thames River' |
| Thanchere | Derived from Old French, meaning 'from the marsh' or 'from the swamp' |
| Thay | A name meaning a gift from the gods. |
| Theabul | Derived from Old English, meaning 'from the boar' or 'from the wild boar' |
| Thebaldus | Derived from Old English, meaning 'from the bold' or 'from the brave' |
| Theobaldus | Derived from Old English, meaning 'bright and bold' or 'famous and brave' |
| Theodbald | Derived from Old English, meaning 'bright and bold' or 'famous and brave' |
| Theodbeald | Derived from Old English, meaning 'bright and bold' or 'famous and brave' |
| Theodbeorht | Derived from Old English, meaning 'bright and famous' or 'famous and renowned' |
| Theoderich | Ruler of the People |
| Theodgar | Derived from Old English, meaning 'people's spear' or 'warrior of the people' |