| Country: | Kingdom of Denmark |
| Previous Election: | 1935 |
| Next Election: | 1943 |
| Seats For Election: | All 149 seats in the Folketing |
| Majority Seats: | 75 |
| Election Date: | 3 April 1939 |
| Heading1: | Elected in Denmark |
| Leader1: | Thorvald Stauning |
| Party1: | Social Democrats (Denmark) |
| Last Election1: | 68 |
| Seats1: | 64 |
| Percentage1: | 42.92 |
| Leader2: | Thomas Madsen-Mygdal |
| Party2: | Venstre (Denmark) |
| Last Election2: | 28 |
| Seats2: | 30 |
| Percentage2: | 18.20 |
| Leader3: | Christmas Møller |
| Party3: | Conservative People's Party (Denmark) |
| Last Election3: | 26 |
| Seats3: | 26 |
| Percentage3: | 17.74 |
| Leader4: | Peter Rochegune Munch |
| Party4: | Danish Social Liberal Party |
| Last Election4: | 14 |
| Seats4: | 14 |
| Percentage4: | 9.52 |
| Leader5: | Valdemar Thomsen |
| Party5: | Farmers' Party (Denmark) |
| Last Election5: | 5 |
| Seats5: | 4 |
| Percentage5: | 2.99 |
| Leader6: | Aksel Larsen |
| Party6: | Communist Party of Denmark |
| Last Election6: | 2 |
| Seats6: | 3 |
| Percentage6: | 2.41 |
| Leader7: | Collective leadership |
| Party7: | Justice Party of Denmark |
| Last Election7: | 4 |
| Seats7: | 3 |
| Percentage7: | 1.99 |
| Leader8: | Frits Clausen |
| Party8: | National Socialist Workers' Party of Denmark |
| Last Election8: | 0 |
| Seats8: | 3 |
| Percentage8: | 1.83 |
| Leader9: | Jens Møller |
| Party9: | Schleswig Party |
| Last Election9: | 1 |
| Seats9: | 1 |
| Percentage9: | 0.88 |
| Heading10: | Elected in the Faroe Islands |
| Leader10: | Andrass Samuelsen |
| Party10: | Union Party (Faroe Islands) |
| Last Election10: | 1 |
| Seats10: | 1 |
| Percentage10: | 34.69 |
| Prime Minister | |
| Before Election: | Thorvald Stauning |
| Before Party: | Social Democrats (Denmark) |
| After Election: | Thorvald Stauning |
| After Party: | Social Democrats (Denmark) |
| Map: | Folketing1939.svg |
Folketing elections were held in Denmark on 3 April 1939,[1] except in the Faroe Islands where they were held on 19 April. They followed a dissolution of both chambers in order to call a referendum on changing the constitution. The referendum was held on 23 May but failed due to a low voter turnout. The result of the elections was a victory for the Social Democratic Party, which won 64 of the 149 seats. Voter turnout was 79.2% in Denmark proper and 47.8% in the Faroes.[2] [3]