Achternamen
| Achternaam | Aantal |
|---|---|
| Sitter, de | 1 |
| Sitters | 1 |
| Sittrop | 1 |
| Sitvast | 1 |
| Siuta | 1 |
| Sivré | 1 |
| Six | 3 |
| Sixliard | 2 |
| Sjoukes | 1 |
| Ska | 1 |
| Sket | 1 |
| Skiba | 1 |
| Skibicki | 1 |
| Skibowski | 1 |
| Sklarienko | 1 |
| Skoberne | 1 |
| Skoropinski | 1 |
| Skorupa | 1 |
| Skrabanja | 1 |
| Skrabar | 1 |
| Skrippek | 2 |
| Skrjanc | 1 |
| Skrobiszewski | 1 |
| Skrzyczak | 1 |
| Skrzypczak | 2 |