| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 561 | Slecg | Anglo-Saxon | Hammer. | M | |
| 562 | Snell | Anglo-Saxon | Nold. | M | |
| 563 | Steadman | Anglo-Saxon | Dwells at the farm. | M | |
| 564 | Stearc | Anglo-Saxon | Severe. | M | |
| 565 | Stedman | Anglo-Saxon | Dwells at the farm. | M | |
| 566 | Stefn | Anglo-Saxon | Stem. | M | |
| 567 | Stepan | Anglo-Saxon | Exalts. | M | |
| 568 | Stewart | Anglo-Saxon | Steward. | M | |
| 569 | Stewert | Anglo-Saxon | Steward. | M | |
| 570 | Stillman | Anglo-Saxon | Gentle. | M | |
| 571 | Stilwell | Anglo-Saxon | From the tranquil stream. | M | |
| 572 | Storm | Anglo-Saxon | Storm. | M | |
| 573 | Strang | Anglo-Saxon | Strong. | M | |
| 574 | Stuart | Anglo-Saxon | Steward. | M | |
| 575 | Sunn | Anglo-Saxon | Gift of the sun. | F | |
| 576 | Sunniva | Anglo-Saxon | Gift of the sun. | F | |
| 577 | Swift | Anglo-Saxon | Swift. | M | |
| 578 | Swithun | Anglo-Saxon | Name of a saint. | M | |
| 579 | Synn | Anglo-Saxon | Sin. | M | |
| 580 | Synne | Anglo-Saxon | Gift of the sun. | F | |