1966 Finnish parliamentary election

1966 Finnish parliamentary election

← 1962 20–21 March 1966 1970 →
All 200 seats in the Parliament of Finland 101 seats needed for a majority
First party Second party Third party   Leader Rafael Paasio Johannes Virolainen Kusti Kulo Party SDP Centre SKDL Last election 19.50%, 38 seats 22.95%, 53 seats 22.02%, 47 seats Seats won 55 49 41 Seat change 17 4 6 Popular vote 645,339 503,047 502,374 Percentage 27.23% 21.23% 21.20% Swing 7.73pp 1.72pp 0.82pp   Fourth party Fifth party Sixth party   Leader Juha Rihtniemi Lars Erik Taxell Mikko Juva Party National Coalition RKP Liberal People's Last election 15.06%, 32 seats 6.11%, 13 seats 6.86%, 14 seats Seats won 26 11 9 Seat change 6 2 5 Popular vote 326,928 134,831 153,259 Percentage 13.79% 5.69% 6.47% Swing 1.27pp 0.42pp 0.39p   Seventh party Eighth party Ninth party   Leader Aarre Simonen Veikko Vennamo Party TPSL Smallholders' Party ÅS Last election 4.36%, 2 seats 2.16%, 0 seats 0.32%, 1 seat Seats won 7 1 1 Seat change 5 1 Popular vote 61,274 24,351 7,118 Percentage 2.59% 1.03% 0.30% Swing 1.77pp 1.13pp 0.02pp
Prime Minister before election Johannes Virolainen Centre Prime Minister after election Rafael Paasio SDP

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Parliamentary elections were held in Finland on 20 and 21 March 1966.^[1] The Social Democratic Party (SDP) overtook the Centre Party as the largest faction in Parliament. Rafael Paasio of the SDP subsequently became Prime Minister and formed a popular front government consisting of the SDP, the Centre Party, the People's Democratic League (SKDL), and the Social Democratic Union of Workers and Smallholders (TPSL) in May 1966.^[2][3]