Iniö is a former municipality of Finland, located in the Southwest Finland region. It was consolidated on 1 January 2009 with Houtskär, Korpo, Nagu and Pargas to form the new town of Väståboland, whose name was changed to Pargas at the beginning of 2012.
Before the consolidation, Iniö was neighboured by Brändö, Houtskär, Korpo, Kustavi, Taivassalo and Velkua. It is now part of the town of Pargas.