Boy names starting with O
The most popular boy names starting with O are Oliver, Owen, Oscar, Omar and Otto. 81 boy names beginning with O were given to enough babies to track; here they are ranked by how many babies received them in 2021–2025.
Most popular boy names starting with O
| # | Name | Babies 2021–2025 | Rank 2025 |
|---|---|---|---|
| 1 | Oliver | 75,016 | #3 |
| 2 | Owen | 40,163 | #31 |
| 3 | Oscar | 8,580 | #223 |
| 4 | Omar | 6,746 | #260 |
| 5 | Otto | 5,735 | #277 |
| 6 | Orion | 5,023 | #334 |
| 7 | Onyx | 4,596 | #365 |
| 8 | Odin | 4,184 | #502 |
| 9 | Omari | 2,518 | #687 |
| 10 | Ozzy | 2,372 | #549 |
| 11 | Ocean | 2,167 | #720 |
| 12 | Otis | 2,084 | #652 |
| 13 | Orlando | 1,536 | #873 |
| 14 | Ozias | 1,273 | #708 |
| 15 | Osiris | 1,147 | #1,077 |
| 16 | Osman | 1,076 | #1,157 |
| 17 | Ollie | 1,029 | #1,058 |
| 18 | Oziel | 809 | #997 |
| 19 | Oakland | 769 | #1,248 |
| 20 | Oren | 749 | #1,184 |
| 21 | Octavio | 688 | #1,278 |
| 22 | Osiel | 676 | #1,454 |
| 23 | Osvaldo | 658 | #1,408 |
| 24 | Ozzie | 631 | #1,455 |
| 25 | Orson | 604 | #1,433 |
| 26 | Oskar | 572 | #1,750 |
| 27 | Obadiah | 571 | #1,630 |
| 28 | Olin | 449 | #1,849 |
| 29 | Oaklen | 443 | #2,277 |
| 30 | Oden | 422 | #2,033 |
| 31 | Octavius | 417 | #2,073 |
| 32 | Obed | 404 | #2,072 |
| 33 | Ori | 397 | #2,002 |
| 34 | Orin | 396 | #1,859 |
| 35 | Oslo | 392 | #1,969 |
| 36 | Oziah | 339 | #1,833 |
| 37 | Om | 334 | #2,177 |
| 38 | Omer | 333 | #2,103 |
| 39 | Oswald | 311 | #2,161 |
| 40 | Octavian | 300 | #2,592 |
| 41 | Osmar | 292 | #2,345 |
| 42 | Oak | 287 | #2,344 |
| 43 | Orrin | 286 | #2,278 |
| 44 | Olivier | 271 | #2,559 |
| 45 | Omarion | 251 | #2,560 |
| 46 | Oshea | 251 | #2,507 |
| 47 | Oswaldo | 225 | #3,027 |
| 48 | Ojas | 199 | #2,787 |
| 49 | Olen | 189 | #3,489 |
| 50 | Omega | 188 | #4,016 |
| 51 | Othniel | 188 | #2,746 |
| 52 | Oz | 186 | #3,490 |
| 53 | Odysseus | 183 | #2,870 |
| 54 | Omri | 182 | #3,567 |
| 55 | Ousmane | 167 | #3,635 |
| 56 | Oryan | 154 | #3,289 |
| 57 | Ovidio | 144 | #4,351 |
| 58 | Oumar | 139 | #3,171 |
| 59 | Owyn | 127 | #5,780 |
| 60 | Odell | 122 | #4,495 |
| 61 | Olan | 115 | #6,345 |
| 62 | Octavious | 114 | #5,546 |
| 63 | Oran | 100 | #5,153 |
| 64 | Ole | 94 | #4,820 |
| 65 | Orlin | 94 | #4,662 |
| 66 | Osborne | 85 | #4,663 |
| 67 | Obie | 81 | #8,065 |
| 68 | Otoniel | 80 | #6,069 |
| 69 | Orville | 67 | #6,347 |
| 70 | Ottis | 65 | #6,070 |
| 71 | Osbaldo | 65 | #6,348 |
| 72 | Odis | 62 | #6,065 |
| 73 | Odie | 52 | #5,547 |
| 74 | Orie | 45 | #7,545 |
| 75 | Oneil | 38 | #10,405 |
| 76 | Oneal | 37 | #11,642 |
| 77 | Olaf | 28 | #13,369 |
| 78 | Orvin | 15 | — |
| 79 | Orland | 11 | — |
| 80 | Oris | 6 | — |
| 81 | Ozell | 5 | #13,387 |