General elections were held in Belgium on 8 November 1981. Voter turnout was 94.5% in the Chamber election and 94.6% in the Senate election. Elections were also held for the nine provincial councils and for the Council of the German Cultural Community. They were the first elections after the voting age was lowered from 21 to 18. This contributed to the success of the socialist parties and the green parties.

Marc Maria Frans, Viscount Eyskens, known as Mark Eyskens, is a Belgian economist, professor and politician in the Christian People's Party, now called Christian Democratic and Flemish, and briefly served as the prime minister of Belgium in 1981.