| Naam | Aantal | Naam | Aantal |
|---|---|---|---|
| Salverda | 1 | Sissema | 1 |
| Sasma | 1 | Sjonstra | 1 |
| Scheltema | 1 | Slijp | 2 |
| Schol | 3 | Sprong | 1 |
| Siccama | 4 | Staek | 1 |
| Siderius | 6 | Staester | 1 |
| Sijperda | 1 | Staetster | 8 |
| Silvius | 1 | Stellingwerf | 10 |
| Sinnema | 1 | Stienstra | 4 |
| Sioelema | 1 | Strikwerda | 4 |
| Sioelma | 1 | Swijnstra | 1 |
| Sipma | 1 | Sytsma | 1 |
| Sipma, van | 3 | - | - |