Karhunen is a Finnish surname of Virtanen type derived from the word karhu, "bear". In the past, the surname had a feminine form, Karhutar < Karhunen tytär ("Kahunen's daughter").
Notable people with the surname include:
Jorma Karhunen (1913âÂÂ2002), Finnish WW II fighter ace
Kari Karhunen (1915âÂÂ1992), Finnish probabilist and mathematical statistician
Esko Karhunen (1928âÂÂ2016), Finnish basketball player
Tomi Karhunen (born 1989), Finnish ice hockey goaltender