| Naam | Aantal | Naam | Aantal |
|---|---|---|---|
| Ovenbrugge de Duras, d' | 1 | Overwelde, van | 1 |
| Overdam | 2 | Overzee | 5 |
| Overdijk | 3 | Ow zu Wachtendorf, von | 1 |
| Overduin | 1 | Owain ap Gruffydd | 1 |
| Overkamp | 1 | Owain Gwynedd, ab | 5 |
| Overliese | 1 | Owen, ap | 1 |
| Overloop, van | 2 | Owstien, von | 14 |
| Overman | 1 | Oxener | 1 |
| Overmars | 1 | Oyarzàbal y Sagastume | 1 |
| Overvliet | 1 | Oyly, d' | 1 |
| Overwater | 3 | Oyly, ter | 1 |
| Overweel | 1 | - | - |