Federal elections were held in Switzerland on 29 October 1939.
[1] The Free Democratic Party emerged as the largest party in the National Council, winning 49 of the 187 seats.
[2] Due to the outbreak of World War II, there were no elections in nine of the 25 cantons; Appenzell Ausserrhoden, Lucerne, Neuchâtel, Schwyz, Solothurn, Ticino, Valais, Vaud and Zug.
[3] In what became known as "silent elections", a total of 55 candidates were elected unopposed.
[3] In several cantons the members of the Council of the States were chosen by the cantonal parliaments.