Väinölä is a Finnish surname. Notable people with the surname include:
Kalle Väinölä (born 1971), Finnish retired professional golfer Hele Väinölä (born 1977), Finnish scientist and inventor Osmo Väinölä (1928–2024), Finnish diplomat and ambassador Ville Väinölä (born 1996), Finnish ice hockey defenceman
See also
Vainola, Estonian surname