Parliamentary elections were held in Czechoslovakia on 27 October 1929. The Republican Party of Farmers and Peasants, emerged as the largest party, winning 46 seats in the Chamber of Deputies and 24 seats in the Senate. Voter turnout was 90.2% in the Chamber election and 78.8% for the Senate. The rightward shift of the 1925 elections was reversed, with moderate centre-left groups (Social Democrats and Czechoslovak National Socialists) increasing their vote shares whilst the Communist Party suffered a set-back.