| Naam | Aantal | Naam | Aantal |
|---|---|---|---|
| Schaap | 1 | Sminia | 1 |
| Schierhuis | 1 | Sprong | 1 |
| Schilstra | 1 | Stapert | 2 |
| Schuiringa | 1 | Stiensma | 7 |
| Schutsma | 2 | Stienstra | 3 |
| Siccama | 24 | Stonebrink | 13 |
| Sickama | 2 | Storck | 1 |
| Sickema | 3 | Struys | 1 |
| Siderius | 3 | Suffena | 2 |
| Siercksma | 4 | Suringar | 2 |
| Sinnema | 7 | Swart | 6 |
| Sipma | 4 | Swichum, van | 1 |
| Sipma, van | 13 | Sybada | 1 |
| Sippema, van | 1 | Sybrandi | 1 |
| Sissema | 1 | Sydses | 1 |
| Sixma | 1 | Sypts | 1 |
| Sixma, van | 1 | Sytzama | 1 |
| Sluiterman | 1 | Sytzma | 1 |