Achternamen
| Achternaam | Aantal |
|---|---|
| Ollertz | 1 |
| Ollitrault de Keryvallan | 1 |
| Olmen, van | 2 |
| Olmetschenko | 1 |
| Olminkhof | 1 |
| Olphen, van | 2 |
| Olsem | 1 |
| Olsen | 1 |
| Olst, van | 1 |
| Olsthoorn | 6 |
| Olszak | 3 |
| Olszewski | 1 |
| Oltheten | 1 |
| Olthof | 5 |
| Olthoff | 1 |
| Olthuis | 2 |
| Olthuizen | 1 |
| Oltshoorn | 1 |
| Olvers | 2 |
| Olyslaegers | 1 |
| Olyslagers | 1 |
| Olzheim | 7 |
| Ombergen, van | 1 |
| Ombrecht | 1 |
| Omdracht | 1 |