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 Päivi Rantanen. The municipality is unilingually Finnish. References External links Municipality of Siikainen – Official website Municipalities of Satakunta Populated places established in 1871 1871 establishments in Finland