Suomalainen is a Finnish surname. Notable people with the surname include:
Aapeli Suomalainen (1866–1932), Finnish politician Jacobus Finno (real name Jaakko Suomalainen; c. 1540–1588), Finnish priest and rector Juho Suomalainen (1868–1941), Finnish politician Kari Suomalainen (1920–1999), Finnish cartoonist Paavo Suomalainen (1907–1976), Finnish zoologist and physiologist Tuomo Suomalainen (1931–1988), Finnish architect Olavi Suomalainen (born 1947), Finnish marathon runner Roope Suomalainen (born 1973), Finnish sailor Piia Suomalainen (born 1984), Finnish tennis player See also
Suominen