Heikki Olavi Suomalainen (born 27 March 1947 in SÀÀminki) is a Finnish former marathon runner.
He won the Boston Marathon in 1972 by an 18-second margin over VĂctor Mora.
In 1973 he finished third at the same race.During his career, Olavi Suomalainen sustained injuries and failed to qualify for the Summer Olympics or European Championships in Athletics.
He took the bronze medal at the Finnish Championship Marathon in the Olympic years 1972 and 1976.