1966–1970 Parliament of the United Kingdom
← 1964–1966 Parliament 1970–February 1974 Parliament →
Palace of Westminster in 1968
Overview
Legislative body	Parliament of the United Kingdom
Term	31 March 1966 (1966-03-31) – 29 May 1970 (1970-05-29)
Election	1966 United Kingdom general election
Government	Second Wilson ministry
House of Commons
Members	630
Speaker	Horace King
Leader	Herbert Bowden Richard Crossman Fred Peart
Prime Minister	Harold Wilson
Leader of the Opposition	Edward Heath
Third-party leader	Jo Grimond Jeremy Thorpe
House of Lords
Lord Chancellor	Baron Gardiner

This is a list of members of Parliament elected at the 1966 general election, held on 31 March.

By nation

• List of MPs for constituencies in Scotland (1966–1970)

Composition

These representative diagrams show the composition of the parties in the 1966 general election.

Note: This is not the official seating plan of the House of Commons, which has five rows of benches on each side, with the government party to the right of the speaker and opposition parties to the left, but with room for only around two-thirds of MPs to sit at any one time.

This is a list of members of Parliament elected to the Parliament of the United Kingdom at the 1966 general election, held on 31 March.

Notable newcomers to the House of Commons included David Owen, John Nott, Michael Heseltine, Jack Ashley, Donald Dewar, Gwyneth Dunwoody, John Pardoe, David Winnick, Gerry Fitt and Andrew Faulds.

By-elections

See the list of United Kingdom by-elections.