Ikaalinen (Ikalis in Swedish) is a municipality of Finland.

It is located in the province of Western Finland and is part of the Pirkanmaa region. The municipality has a population of 7,715 and covers an area of 843.7 km² of which 91.51 km² is water. The population density is 10.1 inhabitants per km².

The municipality is unilingually Finnish.

The Seitseminen national park is partly located in the municipality.