The Adventist Church of Finland (Finnish: Suomen adventtikirkko) is a Protestant Christian religious community that began operating in Finland in 1892.^[1] In 2017, it had about 4,700 members,^[2] and more than 60 parishes.^[3]

Adventism arrived in Finland from the United States via Sweden in the early 1890s.^[4][5] 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 (Finnish: Suomen Seitsemännen Päivän Adventistien Filantrooppienn yhdistys) 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 Turku Adventist Parish [fi], also known as the Betel Church.^[6] Swedish-speaking Adventists formed their own organization in the late 1920s.^[7]