Heinonen is a Finnish surname. Notable people with the surname include: Aarre Heinonen (1906–2003), painter and professor Eero Heinonen (born 1979), Finnish bassist Juha Heinonen (1960–2007), Finnish mathematician Juhani Heinonen (born 1940), Finnish curler and coach Kaarlo Heinonen (1878–1944), Finnish politician Marjut Heinonen (born 1976), Finnish sport shooter Olli Heinonen (born 1946), Finnish nuclear expert Olli-Pekka Heinonen (born 1964), Finnish politician Osku Heinonen (born 1992), Finnish basketball player Petri Heinonen (born 1988), Finnish basketball player Raimo Heinonen (born 1935), Finnish gymnast Timo Heinonen (born 1975), Finnish politician Vappu Heinonen (1905–1999) Finnish social worker and politician Veikko Heinonen (1934–2015), Finnish ski jumper Finnish-language surnames