| Country: | Latvia |
| Election Date: | 17–18 April 1920 |
| Next Election: | 1922 |
| First Election: | yes |
| Party1: | Latvian Social Democratic Workers' Party |
| Percentage1: | 38.67 |
| Seats1: | 57 |
| Party2: | Latvian Farmers' Union |
| Percentage2: | 17.79 |
| Seats2: | 26 |
| Party3: | Latgalian Farmers Party |
| Percentage3: | 10.26 |
| Seats3: | 17 |
| Percentage4: | 4.54 |
| Seats4: | 6 |
| Percentage5: | 4.17 |
| Seats5: | 6 |
| Percentage6: | 3.96 |
| Seats6: | 6 |
| Percentage7: | 3.73 |
| Seats7: | 6 |
| Percentage8: | 3.36 |
| Seats8: | 6 |
| Percentage9: | 2.28 |
| Seats9: | 3 |
| Percentage10: | 1.98 |
| Seats10: | 3 |
| Percentage11: | 1.92 |
| Seats11: | 4 |
| Percentage12: | 1.80 |
| Seats12: | 5 |
| Percentage13: | 1.57 |
| Seats13: | 2 |
| Party14: | Ceire Cion |
| Percentage14: | 1.16 |
| Seats14: | 1 |
| Percentage15: | 0.92 |
| Seats15: | 1 |
| Percentage16: | 0.78 |
| Seats16: | 1 |
| Map: | 1920 Latvian parliamentary election - Results by constituency.svg |
| Prime Minister | |
| Before Election: | Kārlis Ulmanis |
| Before Party: | Latvian Farmers' Union |
| After Election: | Kārlis Ulmanis |
| After Party: | Latvian Farmers' Union |
Constitutional Assembly elections were held in Latvia on 17 and 18 April 1920.[1] The Latvian Social Democratic Workers' Party emerged as the largest party in the Constitutional Assembly, winning 57 of the 150 seats.[2] The elections were boycotted by communist parties.[3] The Constitutional Assembly was responsible for drafting a constitution, which was approved on 15 February and promulgated on 7 November 1922.[3]