Surnames · O
Surname frequency based on U.S. Census Bureau surname data. Rank 1 is the most common surname in the imported Census file.
| Rank | Surname | Count | Rarity |
|---|---|---|---|
| 68 | ORTIZ | 286,899 | — |
| 140 | OWENS | 182,719 | — |
| 157 | OLSON | 164,035 | — |
| 239 | ORTEGA | 127,256 | — |
| 258 | OBRIEN | 118,557 | — |
| 264 | OLIVER | 115,900 | — |
| 408 | OCHOA | 78,677 | — |
| 417 | OCONNOR | 77,923 | — |
| 502 | OSBORNE | 66,827 | — |
| 512 | OROZCO | 65,904 | — |
| 543 | OWEN | 61,630 | — |
| 566 | OLSEN | 59,356 | — |
| 689 | ONEILL | 50,028 | — |
| 729 | ONEAL | 47,979 | — |
| 774 | ORR | 44,388 | — |