Achternamen
| Achternaam | Aantal |
|---|---|
| Sijstermans | 69 |
| Sikes | 1 |
| Sikkema | 4 |
| Sikken | 2 |
| Sikkenga | 8 |
| Sikkenk | 1 |
| Sikkens | 1 |
| Sikkes | 4 |
| Sikking | 3 |
| Sikkink | 3 |
| Sikora | 1 |
| Sikorski | 2 |
| Sikteubun | 1 |
| Silderhuis | 1 |
| Silkens | 38 |
| Sillekens | 15 |
| Sillen | 55 |
| Silln | 3 |
| Silva, de | 1 |
| Silverans | 3 |
| Silverentand | 4 |
| Silvertand | 20 |
| Silvertandt | 1 |
| Silvertant | 4 |
| Silvester | 1 |