Vaasa (Swedish: Vasa) is one of the 13 electoral districts of the Parliament of Finland, the national legislature of Finland. The district was established in 1960 by the merger of Vaasa Province North and Vaasa Province South districts. It is conterminous with the regions of Central Ostrobothnia, Ostrobothnia and South Ostrobothnia. The district currently elects 16 of the 200 members of the Parliament of Finland using the open party-list proportional representation electoral system. At the 2023 parliamentary election it had 365,027 registered electors.

Vaasa Province was established in 1960 by the merger of Vaasa Province North and Vaasa Province South districts.^[4] Virrat municipality was transferred from Vaasa Province to Häme Province North in 1969.^[5] The district was renamed Vaasa in 1997.^[6][7]

Vaasa currently elects 16 of the 200 members of the Parliament of Finland using the open party-list proportional representation electoral system.^[8][9] Parties may form electoral alliances with each other to pool their votes and increase their chances of winning seats.^[10][11] However, the number of candidates nominated by an electoral alliance may not exceed the maximum number of candidates that a single party may nominate.^[12] Seats are allocated using the D'Hondt method.^[13][14]