The Finnish Declaration of Independence was adopted by the Parliament of Finland on 6 December 1917. It declared Finland a fully independent nation, ending its status as Grand Duchy of Finland, an autonomous state ruled by the Russia, with reference to a bill simultaneously delivered to the Parliament to make Finland a fully independent republic instead.

The Parliament of Finland is the unicameral and supreme legislature of Finland, founded on 9 May 1906. In accordance with the Constitution of Finland, sovereignty belongs to the people, and that power is vested in the Parliament. The Parliament consists of 200 members, 199 of whom are elected every four years from 13 multi-member districts electing 6 to 37 members using the proportional D'Hondt method. In addition, there is one member from Åland.