| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 481 | Osrik | Teutonic | Divine ruler. | M | |
| 482 | Osvald | Teutonic | Divine power. | M | |
| 483 | Oswald | Teutonic | Divine power. | M | |
| 484 | Oswaldo | Teutonic | Divine power. | M | |
| 485 | Ota | Teutonic | Rich. | M | |
| 486 | Othmar | Teutonic | Happy fame. | M | |
| 487 | Otik | Teutonic | Rich. | M | |
| 488 | Oto | Teutonic | Rich. | M | |
| 489 | Otokars | Teutonic | Rich. | M | |
| 490 | Otomars | Teutonic | Rich. | M | |
| 491 | Otto | Teutonic | Wealthy. | M | |
| 492 | Ottoway | Teutonic | Lucky in war. | M | |
| 493 | Otway | Teutonic | Lucky in war. | M | |
| 494 | Outram | Teutonic | Wealthy raven. | M | |
| 495 | Panchito | Teutonic | Free. | M | |
| 496 | Paquito | Teutonic | Free. | M | |
| 497 | Patxi | Teutonic | Free. | M | |
| 498 | Paxon | Teutonic | Trader. | M | |
| 499 | Paxton | Teutonic | Trader. | M | |
| 500 | Philihert | Teutonic | Sharp - willed. | M | |