Ruohonen is a Finnish surname. Notable people with the surname include:
- Ilkka Ruohonen (1958–2016), Finnish cultural anthropologist and documentary filmmaker
- Laura Ruohonen (born 1960), Finnish playwright and theatre director
- Rich Ruohonen (born 1971), American curler
- Seppo Ruohonen (1946-2020), Finnish opera singer
- Matti ja Teppo Ruohonen, Finnish pop singer duo
See also
edit- Pirkko Ruohonen-Lerner (born 1957), Finnish politician