US name list
Boy names starting with O
27 exact spellings starting with O had at least 100 published male SSA records in 2025. Oliver leads with 14,939.
US national data through 2025 · Source retrieved
Data updated
Included spellings have at least 100 published 2025 male records. The page lists up to 100, highest count first. Letters with fewer than 10 qualifying spellings are not given a page. Download this list (CSV)
| Rank | Name | 2025 count | Change since 2024 |
|---|---|---|---|
| 3 | Oliver | 14,939 | Down 457 |
| 31 | Owen | 7,190 | Down 409 |
| 223 | Oscar | 1,620 | Down 49 |
| 260 | Omar | 1,333 | Down 12 |
| 277 | Otto | 1,241 | Down 3 |
| 334 | Orion | 1,012 | Down 53 |
| 365 | Onyx | 881 | Down 50 |
| 454 | Oakley | 688 | Down 104 |
| 502 | Odin | 604 | Down 41 |
| 549 | Ozzy | 548 | Up 72 |
| 652 | Otis | 422 | Up 63 |
| 687 | Omari | 397 | Down 68 |
| 708 | Ozias | 381 | Up 98 |
| 720 | Ocean | 375 | Down 110 |
| 873 | Orlando | 275 | Down 14 |
| 997 | Oziel | 229 | Up 24 |
| 1,058 | Ollie | 207 | Down 4 |
| 1,077 | Osiris | 200 | Down 31 |
| 1,157 | Osman | 181 | Down 36 |
| 1,184 | Oren | 174 | Up 38 |
| 1,248 | Oakland | 160 | Up 9 |
| 1,278 | Octavio | 154 | Up 16 |
| 1,408 | Osvaldo | 130 | Down 18 |
| 1,433 | Orson | 126 | Up 5 |
| 1,454 | Osiel | 123 | Down 42 |
| 1,455 | Ozzie | 123 | Down 8 |
| 1,630 | Obadiah | 104 | Down 27 |
Rising spellings with 100–499 2025 records
These O spellings grew from 2021 to 2025 and stayed under 500 published male records. A missing 2021 observation is skipped, not treated as zero.
| Name | 2025 count | 2021 count | Ratio |
|---|---|---|---|
| Oziel | 229 | 111 | 2.06× |
| Ozias | 381 | 207 | 1.84× |
| Osiel | 123 | 87 | 1.41× |
| Octavio | 154 | 117 | 1.32× |
| Orson | 126 | 98 | 1.29× |
| Oren | 174 | 151 | 1.15× |
| Osvaldo | 130 | 117 | 1.11× |
| Ozzie | 123 | 114 | 1.08× |
| Ollie | 207 | 195 | 1.06× |
| Oakland | 160 | 151 | 1.06× |
More calculated lists: Old names coming back · Declining baby names since 2020 · Uncommon girl names that are rising · Uncommon boy names that are rising · Baby names 2026 · Girl names starting with Y · Boy names starting with Y.