Francis Leslie Pym, Baron Pym, PC, (born February 13, 1922) is a UK politician and former member of the Cabinet.
He entered parliament in 1961 and served under Edward Heath as Secretary of State for Northern Ireland (1973–1974), and Margaret Thatcher as Defence Secretary (1979–1981), Leader of the House of Commons and Lord President of the Council (1981–1982) then Foreign Secretary (1982–1983). During the 1983 general election campaign he publicly stated that he didn't think a landslide majority would produce a good government; this was publicly repudiated by his party leader, Margaret Thatcher. After winning a landslide she sacked him. He stood down at the 1987 election and was given a life peerage as Lord Pym.
| Preceded by: William Whitelaw | Secretary of State for Northern Ireland 1973–1974 | Followed by: Merlyn Rees |
| Preceded by: Frederick Mulley | Secretary of State for Defence 1979–1981 | Followed by: John Nott |
| Preceded by: Norman St John-Stevas | Chancellor of the Duchy of Lancaster 1981 | Followed by: Baroness Young |
| Preceded by: Lord Soames | Lord President of the Council 1981–1982 | Followed by: John Biffen |
| Preceded by: The Lord Carrington | Foreign Secretary 1982–1983 | Followed by: Sir Geoffrey Howe |