Parliamentary elections were held in Belarus on 23 September 2012. At stake were the 110 seats in the House of Representatives, the lower house of the National Assembly of Belarus.
According to the 1994 electoral law, the 110 members of the House of Representatives were elected in single-member districts. Winning candidates had to achieve an absolute majority of the vote in their constituency and turnout was required to be 50% or more. If neither were achieved, a second round would have been held, contested by the two candidates from the first round with the most votes. For the second round the turnout threshold was reduced to 25%, except in cases in which there is only one candidate contesting the second round, in which case it was abolished. If only one candidate ran in the second round, they still had to achieve a majority of the vote.
The voting age was set at 18, whilst candidates had to be at least 21. Members of the Council of the Republic and members of a local councils were ineligible for election to the House of Representatives. Candidates had to collect at least 1,000 signatures from voters in the constituency they intended to run in.
Voting centres were open from 08:00 to around 20:00. Four previous days of early voting for students, armed service staff and police resulted in at a voter turnout of at least 19%, according to the election commission.
The elections were contested by the Communist Party, the Liberal Democratic Party, the United Left Party "A Just World", the Belarusian Social Democratic Party, the Republican Party of Labour and Justice, the Belarusian Socialist Sporting Party and the Agrarian Party. The BPF Party and the United Civic Party both pulled out of the election a week before polling day. Sixteen seats were uncontested.