Ihalainen is a Finnish surname. Notable people with the surname include:

Lauri Ihalainen (born 1947), Finnish trade union leader and politician J. K. Ihalainen (born 1957), Finnish poet Marianne Ihalainen (born 1967), Finnish ice hockey player

Fictional characters Anna Ihalainen from Finnish TV soap opera Salatut elämät Antti and Anna-Liisa Ihalainen, protagonists from the film Borrowing Matchsticks, as well from the original Finnish novel and the previous 1938 Finnish film with the same name

See also