- Skeers
- Skeffington
- Skelton
- Skennerton
- Skerjanc
- Skerritt
- Skewes
- Skidmore
- Skilton
- Skinner
- Skippen
- Skuse
- Slack
- Sladden
- Slade
- Sladen
- Slaney
- Slann
- Slape
- Slatcher
- Slater
- Slatford
- Slator
- Slattery
- Slaugh
- Slaughter
- Slaven
- Slawson
- Slaymaker
- Sleigh
- Slemmonds
- Slocombe