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 2022.
| Name | Births |
|---|---|
| Oliver | 15,076 |
| Owen | 8,546 |
| Oscar | 1,879 |
| Omar | 1,448 |
| Otto | 1,080 |
| Orion | 1,014 |
| Odin | 1,014 |
| Onyx | 916 |
| Oakley | 804 |
| Omari | 552 |
| Ocean | 466 |
| Otis | 452 |
| Ozzy | 448 |
| Orlando | 307 |
| Osman | 231 |
| Osiris | 229 |
| Ollie | 215 |
| Ozias | 184 |
| Oakland | 157 |
| Octavio | 139 |
| Oren | 139 |
| Oziel | 137 |
| Oskar | 136 |
| Orson | 126 |
| Osiel | 123 |
| Obadiah | 122 |
| Ozzie | 122 |
| Oaklee | 119 |
| Osvaldo | 112 |
| Olin | 105 |
| Oaklen | 101 |
| Oden | 101 |
| Orin | 96 |
| Oslo | 94 |
| Octavius | 84 |
| Obed | 83 |
| Ori | 82 |
| Orhan | 81 |
| Omer | 71 |
| Osmar | 67 |
| Octavian | 61 |
| Orrin | 60 |
| Olivier | 58 |
| Oziah | 58 |
| Om | 58 |
| Oswald | 55 |
| Ollivander | 52 |
| Omarion | 52 |
| Oak | 51 |
| Oshea | 50 |
| Omega | 50 |
| Opie | 47 |
| Oaklyn | 46 |
| Othman | 46 |
| Oswaldo | 45 |
| Ojas | 43 |
| Odysseus | 41 |
| Oryan | 37 |
| Obi | 37 |
| Osiah | 36 |
| Oaklan | 35 |
| Oz | 35 |
| Olsen | 34 |
| Owyn | 33 |
| Oaks | 33 |
| Olyver | 33 |
| Othniel | 32 |
| Odyn | 32 |
| Olen | 31 |
| Ovidio | 30 |
| Ousmane | 29 |
| Ostin | 29 |
| Olliver | 28 |
| Oisin | 28 |
| Owais | 26 |
| Oseias | 26 |
| Onix | 26 |
| Oriel | 25 |
| Onyxx | 25 |
| Olvin | 24 |
| Oswin | 24 |
| Octavious | 24 |
| Omir | 23 |
| Oakes | 23 |
| Otoniel | 23 |
| Oumar | 22 |
| Obie | 22 |
| Oberon | 22 |
| Oseas | 21 |
| Odell | 21 |
| Omri | 20 |
| Olson | 20 |
| Orlin | 20 |
| Osmond | 19 |
| Olan | 19 |
| Osias | 19 |
| Oryn | 18 |
| Osborne | 18 |
| Oaklynn | 18 |
| Ollin | 17 |