Achternamen
| Achternaam | Aantal |
|---|---|
| Augustus | 30 |
| Augustyn | 1 |
| Aukes | 4 |
| Auman | 1 |
| Aunkofer | 2 |
| Aurousseau | 1 |
| Ausem | 1 |
| Ausems | 7 |
| Aushorn | 1 |
| Ausloos | 1 |
| Aussems | 57 |
| Aust | 6 |
| Austen | 27 |
| Autsch | 1 |
| Auw Ong | 1 |
| Auwelant, van den | 1 |
| Auwera, van der | 6 |
| Auwerda | 1 |
| Auwere, van der | 1 |
| Auwermeulen, vander | 1 |
| Auwers | 1 |
| Avendonck, van | 1 |
| Avendonk, van | 1 |
| Averdijk | 1 |
| Avermaat, van | 2 |