Buys is a Dutch surname. It may refer to:
- C. H. D. Buys Ballot (1817-1890), Dutch chemist
- Frieke Buys, Dutch swimmer
- Izak Buys, Dutch cricket player
- Jacobus Buys (1724-1801), Dutch painter
- Jenna-Anne Buys, South African figure skater
- Willem Buys (1661-1749), Dutch civil official