| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 541 | Torger | Norse | Spear of Thor. | M | |
| 542 | Torgny | Norse | Damor of weapons. | M | |
| 543 | Torquil | Norse | Thor's cauldron. | M | |
| 544 | Torrad | Norse | Son of Osvif. | M | |
| 545 | Trigg | Norse | True. | M | |
| 546 | Tron | Norse | Growing. | M | |
| 547 | Trond | Norse | Growing. | M | |
| 548 | Trudord | Norse | From the spearman's ford. | M | |
| 549 | Trygg | Norse | True. | M | |
| 550 | Tryggr | Norse | True. | M | |
| 551 | Trygve | Norse | Brave victory. | M | |
| 552 | Turfeinar | Norse | Son of Rognvald. | M | |
| 553 | Turpin | Norse | Thunder Finn. | M | |
| 554 | Tyr | Norse | God of war. | M | |
| 555 | Ugbjom | Norse | War bear. | M | |
| 556 | Uigbiorn | Norse | War bear. | M | |
| 557 | Ulfmaerr | Norse | Famous wolf. | M | |
| 558 | Ull | Norse | God of skiers. | M | |
| 559 | Ulmer | Norse | Famous wolf. | M | |
| 560 | Uni | Norse | A Dane. | M | |