Starting with letter T
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 501 | Thorgrim | Norse | Brother of Onund Bild. | M | |
| 502 | Thorhadd | Norse | Son of Stein. | M | |
| 503 | Thorian | Scandinavian | Thunder. Variant of Thor. Surname. | M | |
| 504 | Thorin | Scandinavian | Variant of Thor 'Thunder.' Surname. | M | |
| 505 | Thorir | Norse | Son of Asa. | M | |
| 506 | Thorkel | Norse | A sorcerer. | M | |
| 507 | Thorlak | Norse | Bishop of Skalholt. | M | |
| 508 | Thorleif | Norse | Thor's descendant. | M | |
| 509 | Thorleik | Norse | Son of Bolli. | M | |
| 510 | Thorley | English | Thorn wood/clearing; from Thor's meadow. | M | |
| 511 | Thorley | Teutonic | From Thor's meadow. | M | |
| 512 | Thormod | Norse | Son of Odd. | M | |
| 513 | Thormond | English | Thor's protection. | M | |
| 514 | Thormund | English | Thor's protection. | M | |
| 515 | Thorn | English | Town of thorns. Thornton variant. Surname. | M | |
| 516 | Thorndike | English | From the thorny dike. | M | |
| 517 | Thorndyke | English | From the thorny dike. | M | |
| 518 | Thorne | English | From the thom tree. | M | |
| 519 | Thornley | English | From the thorny meadow. | M | |
| 520 | Thornly | English | From the thorny meadow. | M | |