Last Names Starting with O
2,684 surnames found in U.S. Census data starting with O. Sorted by Census rank.
| Rank | Name | Est. Bearers | Per 100K | Rarity |
|---|---|---|---|---|
| #113565 | Ohse | 188 | 0.05 | Very Rare |
| #113565 | Okimura | 188 | 0.05 | Very Rare |
| #113565 | Omahen | 188 | 0.05 | Very Rare |
| #113565 | Ondek | 188 | 0.05 | Very Rare |
| #113565 | Ondish | 188 | 0.05 | Very Rare |
| #113565 | Oparah | 188 | 0.05 | Very Rare |
| #113565 | Orbaker | 188 | 0.05 | Very Rare |
| #113565 | Orina | 188 | 0.05 | Very Rare |
| #113565 | Ormston | 188 | 0.05 | Very Rare |
| #113565 | Ortell | 188 | 0.05 | Very Rare |
| #113565 | Osifo | 188 | 0.05 | Very Rare |
| #113565 | Oxender | 188 | 0.05 | Very Rare |
| #114090 | Odonohoe | 187 | 0.05 | Very Rare |
| #114090 | Ofner | 187 | 0.05 | Very Rare |
| #114090 | Oldendorf | 187 | 0.05 | Very Rare |
| #114090 | Olimpio | 187 | 0.05 | Very Rare |
| #114090 | Omanovic | 187 | 0.05 | Very Rare |
| #114090 | Oral | 187 | 0.05 | Very Rare |
| #114090 | Orella | 187 | 0.05 | Very Rare |
| #114090 | Ormesher | 187 | 0.05 | Very Rare |
| #114090 | Orologio | 187 | 0.05 | Very Rare |
| #114090 | Ortenzio | 187 | 0.05 | Very Rare |
| #114090 | Ortizluis | 187 | 0.05 | Very Rare |
| #114090 | Ovchinnikov | 187 | 0.05 | Very Rare |
| #114613 | Odunlami | 186 | 0.05 | Very Rare |
| #114613 | Orm | 186 | 0.05 | Very Rare |
| #114613 | Ornes | 186 | 0.05 | Very Rare |
| #114613 | Ortwine | 186 | 0.05 | Very Rare |
| #114613 | Osoy | 186 | 0.05 | Very Rare |
| #114613 | Overstake | 186 | 0.05 | Very Rare |
| #115151 | Odel | 185 | 0.05 | Very Rare |
| #115151 | Ofenloch | 185 | 0.05 | Very Rare |
| #115151 | Okrzesik | 185 | 0.05 | Very Rare |
| #115151 | Okundaye | 185 | 0.05 | Very Rare |
| #115151 | Olona | 185 | 0.05 | Very Rare |
| #115151 | Olow | 185 | 0.05 | Very Rare |
| #115151 | Orencia | 185 | 0.05 | Very Rare |
| #115151 | Ortbals | 185 | 0.05 | Very Rare |
| #115151 | Ostic | 185 | 0.05 | Very Rare |
| #115151 | Ostrout | 185 | 0.05 | Very Rare |
| #115686 | Ocel | 183 | 0.05 | Very Rare |
| #115686 | Oesterreicher | 183 | 0.05 | Very Rare |
| #115686 | Oldag | 183 | 0.05 | Very Rare |
| #115686 | Olloqui | 183 | 0.05 | Very Rare |
| #115686 | Opell | 183 | 0.05 | Very Rare |
| #115686 | Oracion | 183 | 0.05 | Very Rare |
| #115686 | Ormaza | 183 | 0.05 | Very Rare |
| #115686 | Orsag | 183 | 0.05 | Very Rare |
| #115686 | Osaghae | 183 | 0.05 | Very Rare |
| #115686 | Osthus | 183 | 0.05 | Very Rare |