The 1982 Beaconsfield by-election was a parliamentary by-election held on 27 May 1982 for the British House of Commons constituency of Beaconsfield in Buckinghamshire.

Beaconsfield is a constituency in Buckinghamshire represented in the House of Commons of the UK Parliament since 2019 by Joy Morrissey of the Conservative Party. She succeeded Independent and former Conservative Dominic Grieve, whom she defeated following his suspension from the party. The constituency was established for the February 1974 general election.