General elections were held in Belgium on 29 August 1831. They were the first elections to the new bicameral parliament created by the constitution adopted in February 1831. In the Senate elections Catholics won 31 seats and Liberals four. Voter turnout was 62.2%, although only 46,000 people (1.1% of the country's population) were eligible to vote. On 8 September 1831, King Leopold I of Belgium opened the 1831–1832 parliamentary session, the first ever of the Belgian Parliament.