The Adventist Church of Finland () is a Protestant Christian religious community that began operating in Finland in 1892.Tietojätti 2000: "Adventistit", p. 13. Gummerus, 1999. . (in Finnish) In 2017, it had about 4,700 members,SUOMEN ADVENTTIKIRKON TILASTOTIETOJA 30.6.2016 (in Finnish) and more than 60 parishes.Seurakunnat - Suomen Adventtikirkko (in Finnish)
Adventism arrived in Finland from the United States via Sweden in the early 1890s.Suomen Adventtikirkko - Jyrki Rossi (in Finnish)Adventtikirkko - Raamattu ajassamme (in Finnish) Adventism initially gained a foothold among the Swedish-speaking population. The movement became an association in 1920, when the Finnish Seventh-day Adventist Philanthropists' Association () was registered. The strongest area of the movement in the 1920s was Turku and Pori with their surroundings; the best known of these is the , also known as the Betel Church.Betel Kirkko - Turun Adventtiseurakunta (in Finnish) Swedish-speaking Adventists formed their own organization in the late 1920s.Eino Murtorinne: Kristinuskon historia 2000, chapter 1923, p. 181. Weilin+Göös, Porvoo, 2000. . (in Finnish)
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