A referendum on freemasonry was held in Switzerland on 28 November 1937.

[1] Voters were asked whether they approved of a popular initiative that would ban the practice.

[1] The proposal was rejected by a majority of voters and cantons.

[1] The referendum was a popular initiative,[1] which required a double majority; a majority of the popular vote and majority of the cantons.

[2] Full cantons counted as one vote, whilst half cantons counted as half.