Suominen is a Finnish surname of Virtanen type derived as "Suomi" "Finland" plus suffix -nen. Notable people with the surname include:

Ilkka Suominen (1939–2022), Finnish politician Kim Suominen (born 1969), Finnish footballer Tuomas Suominen (born 1984), Finnish ice hockey player Veikko Suominen (1948–1978), Finnish ice hockey player

See also

Suominen Corporation Suomalainen