| Country: | Kingdom of Hungary (1920–46) |
| Previous Election: | 1926 |
| Next Election: | 1935 |
| Majority Seats: | 123 |
| Election Date: | 28–30 June 1931 |
| Party1: | Unity Party (Hungary) |
| Percentage1: | 39.96 |
| Seats1: | 149 |
| Last Election1: | 161 |
| Party2: | Christian Economic and Social Party |
| Percentage2: | 12.22 |
| Seats2: | 32 |
| Last Election2: | 35 |
| Party3: | Independent Smallholders, Agrarian Workers and Civic Party |
| Percentage3: | 11.48 |
| Seats3: | 10 |
| Last Election3: | New |
| Party4: | Social Democratic Party of Hungary |
| Percentage4: | 10.98 |
| Seats4: | 14 |
| Last Election4: | 14 |
| Percentage5: | 5.57 |
| Seats5: | 8 |
| Last Election5: | 9 |
| Percentage6: | 3.04 |
| Seats6: | 4 |
| Party7: | Christian Opposition |
| Percentage7: | 1.18 |
| Seats7: | 2 |
| Last Election7: | New |
| Percentage8: | 1.05 |
| Seats8: | 2 |
| Last Election8: | New |
| Percentage9: | 0.73 |
| Seats9: | 1 |
| Last Election9: | New |
| Percentage10: | 0.48 |
| Seats10: | 1 |
| Last Election10: | New |
| Percentage11: | 0.47 |
| Seats11: | 1 |
| Last Election11: | New |
| Percentage12: | 0.4 |
| Seats12: | 1 |
| Last Election12: | New |
| Percentage13: | 0.35 |
| Seats13: | 1 |
| Last Election13: | New |
| Percentage14: | 0.35 |
| Seats14: | 1 |
| Last Election14: | New |
| Percentage15: | 0.24 |
| Seats15: | 1 |
| Last Election15: | New |
| Percentage16: | 0.19 |
| Seats16: | 1 |
| Last Election16: | New |
| Party17: | Independents |
| Leader17: | – |
| Percentage17: | 7.22 |
| Seats17: | 16 |
| Last Election17: | 10 |
| Prime Minister | |
| Posttitle: | Prime Minister after election |
| Before Election: | István Bethlen |
| Before Party: | EP |
| After Election: | István Bethlen |
| After Party: | EP |
Parliamentary elections were held in Hungary between 28 and 30 June 1931.[1] The result was a victory for the Unity Party, which won 149 of the 245 seats in Parliament. István Bethlen remained Prime Minister, but resigned on 24 August due to the effects of the Great Depression and was replaced by Gyula Károlyi.[2]
The electoral system remained the same as in 1926. There were 199 openly elected single-member constituencies and 11 secretly elected multi-member constituencies electing a total of 46 seats.[3] [4]
The total number of registered voters was 2,549,178, but only 1,907,112 were registered in contested constituencies for which figures are available.[3]