Koutný (feminine Koutná) is a Czech surname. Notable people with the surname include:
- Bedřich Koutný (born 1931), Czech boxer
- Jan Koutný, Czech gymnast
- Lajos Koutny, Hungarian ice hockey player
- Václav Koutný, Czech footballer
Koutný (feminine Koutná) is a Czech surname. Notable people with the surname include: