Finland under Swedish rule (1150s–1809)

In Swedish and Finnish history, Finland under Swedish rule is the historical period when the bulk of the area that later came to constitute Finland was an integral part of Sweden. The starting point of Swedish rule is uncertain and controversial. Historical evidence of the establishment of Swedish rule in Finland exists from the late 13th century onwards.

Swedish rule ended in most of so-called Old Finland, the south-eastern part of the Finnish territories, in 1721 as a result of the Great Northern War. Sweden ceded the remainder of Old Finland in 1743 following the Hats' War. On 17 September 1809, the period of Swedish rule over the rest of Finland came to an end when the Treaty of Hamina was signed, ending the Finnish War. As a result, the eastern third of Sweden was ceded to the Russian Empire and became established as the autonomous Grand Duchy of Finland.

Governor-General of Finland

• Gabriel Bengtsson Oxenstierna (1631-1633)