Siikainen
Siikainen is a municipality of Finland.
It is located in the former province of Western Finland and is part of the Satakunta region. The municipality has a population of, which make it the smallest municipality in Satakunta in terms of population. The municipality covers an area of of which is inland water. The population density is . The municipal manager of Siikainen is Heli Kaskiluoto.
The municipality is unilingually Finnish.
Siikainen hosts a buddhist center Samje and the Stupa located there was the northern most in the world until 2016.