Bexley was a parliamentary constituency centred on the Bexley district of what is now southeast London, which existed from 1945 to 1974. It returned one Member of Parliament (MP) to the House of Commons of the UK Parliament.
Its most famous MP was Edward Heath, who held the seat from 1950 until 1974, when he was re-elected in the newly-established seat of Sidcup. Heath served as Prime Minister from June 1970 to March 1974, resigning shortly after the February 1974 general election.
The constituency was formed entirely from the existing constituency of Dartford.
The constituency was created for the 1945 general election, from the Dartford seat, and abolished for the February 1974 general election and replaced by the two new constituencies of Bexleyheath and Sidcup.
The constituency's boundaries were co-terminous with those of the Municipal Borough of Bexley.
The MP when the constituency was abolished, the then Conservative Prime Minister Edward Heath, fought and won the new Sidcup constituency in 1974. He went on to represent the new seat of Old Bexley and Sidcup from 1983 until he retired from Parliament in 2001 after having been an MP for 51 years.