| Name | Total | Name | Total |
|---|---|---|---|
| Oesterman | 7 | Orchudesch | 4 |
| Oexman | 1 | Orenstein | 2 |
| Offwood | 1 | Orgelist | 1 |
| Older | 1 | Oron | 7 |
| Olenick | 9 | Orpes | 1 |
| Olijslager | 1 | Osbourne | 1 |
| Oliva | 1 | Oschatz | 10 |
| Olman | 1 | Osrin | 2 |
| Olsen | 4 | Ossedrijver | 1 |
| Olswang | 5 | Ossendrijver | 2 |
| Onana | 1 | Osterman | 6 |
| Onderweegs | 1 | Ottenbros | 2 |
| Onderwijzer | 2 | Oudkerk | 10 |
| Oosten, VAN | 2 | Outs | 1 |
| Oosterbaan | 1 | Ovenstone | 1 |
| Oosterling, van | 1 | Overste | 2 |
| Oosterom | 3 | Owen | 1 |
| Oosterum | 6 | Owens | 4 |
| Ootjers | 1 | Oxford | 2 |
| Oppenheim | 54 | - | - |