Parliamentary elections were held in Bulgaria on 28 March 1920. It was compulsory to vote. The result was a victory for the Bulgarian Agrarian National Union (BANU), which won 110 of the 229 seats. Voter turnout was 77%.
|Bulgarian Agrarian National Union||349,212||38.56||110||+33|
|Bulgarian Communist Party||184,616||20.39||50||+3|
|Bulgarian Social Democratic Workers Party (Broad Socialists)||55,452||6.12||9||–29|
|Progressive Liberal Party||46,478||5.13||8||0|
|Radical Democratic Party||41,930||4.63||8||0|
|People's Liberal Party–Genadiev||26,819||2.96||2||+1|
|Liberal Party–PLP Petkov–Young Liberals Party||14,469||1.60||0||–|
|Democratic Party–People's Party||8,242||0.91||0||–|
|People's Party–Progressive Liberal Party||8,065||0.89||0||–|
|People's Liberal Party–Petkov||7,785||0.86||4||+2|
|Source: Nohlen & Stöver|
The BANU government annulled the election of 13 deputies – nine of them Communists – which gave them a majority in parliament.