All 23 boys' names beginning with O that have a popularity page, ranked by all-time births (1996–2024). Looking for Girls names starting with O?
| # | Name | Total babies | 2024 rank |
|---|---|---|---|
| 1 | Oliver | 157,197 | #3 |
| 2 | Oscar | 67,495 | #9 |
| 3 | Owen | 30,193 | – |
| 4 | Ollie | 11,741 | – |
| 5 | Oakley | 8,929 | #34 |
| 6 | Otis | 5,382 | #67 |
| 7 | Omar | 4,733 | – |
| 8 | Olly | 3,425 | – |
| 9 | Oskar | 3,239 | – |
| 10 | Owain | 2,081 | – |
| 11 | Osian | 1,902 | – |
| 12 | Olivier | 1,596 | – |
| 13 | Otto | 1,390 | – |
| 14 | Orlando | 968 | – |
| 15 | Oliwier | 897 | – |
| 16 | Oisin | 744 | – |
| 17 | Owais | 690 | – |
| 18 | Osman | 629 | – |
| 19 | Omari | 611 | – |
| 20 | Omer | 568 | – |
| 21 | Orson | 545 | – |
| 22 | Olaf | 536 | – |
| 23 | Oluwatobi | 399 | – |