Oulainen (, also ) is a town and a municipality of Finland. It is located in the Northern Ostrobothnia region, south of the city of Oulu. The municipality has a population of () and covers an area of of which is water. The population density is . Oulainen is founded in 1865, and it received township rights in 1977. The municipality is unilingually Finnish. The municipality has previously also been known as "" in Swedish documents, but is today referred to as "Oulainen" also in Swedish. Geography Neighbouring municipalities are Alavieska, Haapavesi, Merijärvi, Pyhäjoki, Raahe and Ylivieska. In addition to the town center, the municipality includes the villages of Kilpua, Lehtopää, Matkaniva, Petäjäskoski, Piipsjärvi and Honkaranta. History Oulainen was first mentioned in 1572 as Oulahais and as a part of the Pyhäjoki parish. A farm named Oulahainen was established earlier. The name comes from a dialectal word oulu meaning "flooding waters" (see also Oulu) and seems to suggest a Tavastian origin. Alpo Räisänen suggests that the name could be of Savonian or Karelian origin. Oulainen became a chapel community in 1682, a parish in 1870, a kauppala in 1967 and a town in 1977. Events Notable annual events include the National Veteran Machines Fair () and Oulainen Music Weeks (). Oulainen Music Weeks were organized for the twentieth time in 2006. The Oulainen Youth Choir () has received international acclaim. Notable people Eeli Erkkilä, Minister and Member of Parliament, Moped champion Elsi Hetemäki-Olander, Member of Parliament Katja Hänninen, Member of Parliament Merja Kiviranta, triathlonist Rosa-Maria Ryyti, model and Miss Finland 2015 beauty pageant titleholder See also Oulainen railway station References External links Town of Oulainen – Official website Oulainen Music Weeks Cities and towns in Finland Populated places established in 1865