All 55 boys' names beginning with O that have a popularity page, ranked by all-time births (1880–2024). Looking for Girls names starting with O?
| # | Name | Total babies | 2024 rank |
|---|---|---|---|
| 1 | Oliver | 254,854 | #3 |
| 2 | Owen | 238,411 | #26 |
| 3 | Oscar | 211,463 | #217 |
| 4 | Omar | 105,100 | #260 |
| 5 | Otis | 60,653 | #730 |
| 6 | Orlando | 49,177 | #844 |
| 7 | Otto | 38,669 | #274 |
| 8 | Orville | 35,051 | #7,117 |
| 9 | Orion | 22,098 | #325 |
| 10 | Odell | 14,860 | #4,651 |
| 11 | Osvaldo | 14,394 | #1,314 |
| 12 | Omari | 12,756 | #617 |
| 13 | Odin | 12,669 | #479 |
| 14 | Octavio | 11,294 | #1,366 |
| 15 | Olin | 9,842 | #2,143 |
| 16 | Oren | 9,326 | #1,380 |
| 17 | Omer | 8,784 | #2,105 |
| 18 | Odis | 8,214 | #6,364 |
| 19 | Orval | 7,915 | – |
| 20 | Olen | 7,632 | #2,895 |
| 21 | Otha | 6,386 | – |
| 22 | Orin | 6,198 | #2,246 |
| 23 | Onyx | 5,954 | #358 |
| 24 | Orrin | 5,922 | #2,691 |
| 25 | Oswaldo | 5,861 | #2,930 |
| 26 | Ottis | 4,458 | #6,369 |
| 27 | Oran | 4,428 | #4,982 |
| 28 | Oswald | 4,339 | #2,121 |
| 29 | Obie | 4,155 | #5,373 |
| 30 | Obed | 4,063 | #1,945 |
| 31 | Ocean | 4,030 | #591 |
| 32 | Omarion | 3,954 | #2,613 |
| 33 | Osman | 3,711 | #1,031 |
| 34 | Ozzy | 3,628 | #602 |
| 35 | Octavius | 3,614 | #2,020 |
| 36 | Osiris | 3,391 | #976 |
| 37 | Otho | 3,328 | – |
| 38 | Oskar | 3,148 | #1,721 |
| 39 | Ozzie | 3,088 | #1,413 |
| 40 | Osbaldo | 3,078 | #7,119 |
| 41 | Oneal | 3,043 | #6,701 |
| 42 | Osiel | 2,872 | #1,220 |
| 43 | Oral | 2,802 | – |
| 44 | Olan | 2,718 | #4,652 |
| 45 | Odie | 2,606 | #9,595 |
| 46 | Orson | 2,586 | #1,500 |
| 47 | Olaf | 2,525 | #13,645 |
| 48 | Oziel | 2,488 | #1,064 |
| 49 | Obadiah | 2,416 | #1,412 |
| 50 | Om | 2,255 | #2,161 |
| 51 | Osmar | 2,244 | #2,354 |
| 52 | Ole | 2,101 | #5,178 |
| 53 | Orland | 2,081 | – |
| 54 | Ozell | 1,720 | – |
| 55 | Orie | 1,715 | #13,664 |