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- William Scawen, soldier and linguist
- Kristin Scott-Thomas, actress
- Richard Sharp, Rugby union player of the 1960s who captained England and won 14 caps
- Tim Smit head gardener at the Eden Project
- Barney Solomon, Rugby union player who captained the silver medal winning Great Britain team in the 1908 Olympics
- John Spargo Socialist and scholar
- Howard Spring novelist
- Rick Stein celebrity TV chef, owns a restaurant in Padstow and his pet dog Chalky
- Claude Brian Stevens, known as "Stack Stevens", born in Godolphin, rugby player who won 25 caps for England
Read more about this topic: List Of People From Cornwall