Parliamentary elections were held in Bulgaria on 13 October 1991. They were the first elections held under the country's first post-communist constitution, which had been promulgated three months earlier. Voter turnout was 84%.
The Union of Democratic Forces (SDS) emerged as the largest party, winning 110 of the 240 seats. The Bulgarian Socialist Party, the successor to the Communist Party, finished a close second with 106 seats. The Movement for Rights and Freedoms, which represented the ethnic-Turkish minority, won 24 seats. None of the other 58 parties that contested the elections crossed the 4% electoral threshold necessary to win seats in parliament.
Following the elections SDS leader Philip Dimitrov became Prime Minister, heading a coalition of the SDS and the Movement for Rights and Freedoms. It was the first noncommunist government in Bulgaria in 46 years.