First Thatcher ministry
| First Thatcher ministry | |
|---|---|
| Cabinet of the United Kingdom | |
| 1979–1983 | |
| Thatcher with members of her cabinet (left) during talks with Ronald Reagan and members of his cabinet (right) in 1981 | |
| Date formed | 4 May 1979 | 
| Date dissolved | 10 June 1983 | 
| People and organisations | |
| Monarch | Elizabeth II | 
| Prime Minister | Margaret Thatcher | 
| Prime Minister's history | Premiership of Margaret Thatcher | 
| Deputy Prime Minister | |
| Total no. of members | 213 appointments | 
| Member party | Conservative Party | 
| Status in legislature | Majority 339 / 635 (53%) | 
| Opposition cabinet | |
| Opposition party | Labour Party | 
| Opposition leader | 
 | 
| History | |
| Election | 1979 general election | 
| Outgoing election | 1983 general election | 
| Legislature terms | 48th UK Parliament | 
| Budgets | |
| Predecessor | Callaghan ministry | 
| Successor | Second Thatcher ministry | 
Margaret Thatcher was Prime Minister of the United Kingdom from 4 May 1979 to 28 November 1990, during which time she led a Conservative majority government. She was the first woman to hold that office. During her premiership, Thatcher moved to liberalise the British economy through deregulation, privatisation, and the promotion of entrepreneurialism.
This article details the first Thatcher ministry which she led at the invitation of Queen Elizabeth II from 1979 to 1983.