Wantirna is a suburb of Melbourne, Australia, in the state of Victoria. It is in the Local Government Area of the City of Knox. Features include the Knox Private Hospital and Swinburne TAFE Wantirna Campus. On Sundays there is a Trash and Trade market. There is also a Scope pool and a Hungarian Community Centre, and a tree farm opposite.

Wantirna is the site of the well known Knox City Shopping Centre which has a large bus terminus.

Schools in Wantirna include Wantirna Primary School, Wantirna College, Wantirna Heights School, Regency Park Primary School and Templeton Primary School.