This article lists government ministers who served under Prime Minister Margaret Thatcher. She was Prime Minister from 1979 to 1990, during which time she led a Conservative majority government, and was the first woman to hold the office. During her premiership, Thatcher retained the Falkland Islands, moved to liberalise the British economy through deregulation, privatisation, introducing the Right to Buy, through lower taxation and the promotion of entrepreneurialism. Ministers Cabinets May 1979 to September 1981 September 1981 to June 1983 June 1983 to June 1987 June 1987 to July 1989 July 1989 to November 1990 Notes References History of the Conservative Party (UK) Ministers Lists of politicians from the United Kingdom 1980s politics-related lists