Kainulainen (surname)
# Kainulainen (surname)

Kainulainen is a Finnish surname. Notable people with the surname include:

* Heikki Kainulainen (1917–2005), Finnish farmer and politician
* Markus Kainulainen (1922–2017), Finnish politician
* Jari Kainulainen (born 1970), Finnish bass guitarist
