Achternamen
| Achternaam | Aantal |
|---|---|
| Rucquoy | 1 |
| Rudde | 1 |
| Rudder, de | 3 |
| Rudel | 1 |
| Rüdell | 1 |
| Rüdesheim | 1 |
| Rüdiger | 1 |
| Ruding | 4 |
| Rudink | 1 |
| Rudol | 1 |
| Rudolf de Marchant et d'Ansembourg | 1 |
| Rudolph | 4 |
| Rue, de | 2 |
| Ruedi | 5 |
| Ruefli | 1 |
| Ruegers | 1 |
| Ruelens | 2 |
| Ruelle, de la | 4 |
| Ruemkens | 4 |
| Ruepert | 1 |
| Ruers | 29 |
| Ruette | 2 |
| Ruffini | 4 |
| Rugar | 1 |
| Rüger | 1 |