Ealing South was a constituency covering the same part of the Municipal Borough of Ealing in Middlesex as its short-lived forerunner Ealing East. It returned one member (MP) to the House of Commons of the UK Parliament. It was won by two Conservatives consecutively with majorities ranging from 13.6% to 30.5%, was first contested in the general election in 1950 and was replaced before that of February 1974.