This is a list of the most common boy names starting with the letter O, based on babies born in the United States in the year 2024.
| Name | Births |
|---|---|
| Oliver | 15,343 |
| Owen | 7,574 |
| Oscar | 1,656 |
| Omar | 1,343 |
| Otto | 1,239 |
| Orion | 1,061 |
| Onyx | 927 |
| Oakley | 785 |
| Odin | 641 |
| Ocean | 483 |
| Ozzy | 472 |
| Omari | 461 |
| Otis | 358 |
| Orlando | 288 |
| Ozias | 280 |
| Osiris | 230 |
| Osman | 216 |
| Ollie | 211 |
| Oziel | 205 |
| Osiel | 165 |
| Oakland | 151 |
| Osvaldo | 148 |
| Octavio | 138 |
| Oren | 136 |
| Obadiah | 131 |
| Ozzie | 131 |
| Orson | 119 |
| Ori | 111 |
| Oaklen | 98 |
| Oskar | 96 |
| Oziah | 82 |
| Oslo | 82 |
| Oaklee | 81 |
| Obed | 81 |
| Octavius | 76 |
| Omer | 71 |
| Oswald | 70 |
| Olin | 69 |
| Om | 68 |
| Oden | 65 |
| Orhan | 65 |
| Olsen | 64 |
| Orin | 64 |
| Octavian | 63 |
| Osmar | 60 |
| Oak | 57 |
| Osiah | 52 |
| Omarion | 51 |
| Olivier | 49 |
| Orrin | 49 |
| Oshea | 48 |
| Oaks | 45 |
| Olen | 44 |
| Oswaldo | 43 |
| Ojas | 41 |
| Oakes | 41 |
| Oz | 40 |
| Ousmane | 40 |
| Ovidio | 39 |
| Odysseus | 39 |
| Oaklan | 39 |
| Omri | 39 |
| Opie | 38 |
| Oseias | 38 |
| Omega | 37 |
| Olson | 36 |
| Oaklyn | 35 |
| Owais | 32 |
| Oumar | 31 |
| Oriel | 30 |
| Othniel | 30 |
| Oberon | 30 |
| Obi | 29 |
| Oryan | 29 |
| Oswin | 28 |
| Oseas | 28 |
| Ollivander | 28 |
| Othman | 27 |
| Oisin | 26 |
| Osias | 26 |
| Owyn | 25 |
| Orlin | 25 |
| Ostin | 23 |
| Obaida | 23 |
| Olan | 22 |
| Odell | 22 |
| Olvin | 21 |
| Omir | 21 |
| Ozan | 20 |
| Orian | 20 |
| Oran | 20 |
| Ole | 19 |
| Odyn | 19 |
| Ozziel | 19 |
| Oaklin | 19 |
| Obsidian | 19 |
| Oaken | 19 |
| Onix | 18 |
| Obie | 18 |
| Olyver | 18 |