The Treaty of Nystad, or the Treaty of Uusikaupunki, was the last peace treaty of the Great Northern War of 1700–1721. It was concluded between the Tsardom of Russia and the Swedish Empire on 10 September [O.S. 30 August] 1721 in the then Swedish town of Nystad. Sweden had settled with the other parties in Stockholm and in Frederiksborg (1720).