Ang Matwid na Kagalang-galang Ang Gat Callaghan ng Cardiff KG PC
Prime Minister of the United Kingdom
Nasa puwesto 5 April 1976 – 4 May 1979
Monarko	Elizabeth II
Nakaraang sinundan	Harold Wilson
Sinundan ni	Margaret Thatcher
Father of the House
Nasa puwesto 9 June 1983 – 11 June 1987
Nakaraang sinundan	John Parker
Sinundan ni	Bernard Braine
Leader of the Labour Party
Nasa puwesto 5 April 1976 – 10 November 1980
Diputado	Michael Foot
Nakaraang sinundan	Harold Wilson
Sinundan ni	Michael Foot
Leader of the Opposition
Nasa puwesto 4 May 1979 – 10 November 1980
Monarko	Elizabeth II
Punong Ministro	Margaret Thatcher
Nakaraang sinundan	Margaret Thatcher
Sinundan ni	Michael Foot
Secretary of State for Foreign and Commonwealth Affairs
Nasa puwesto 5 March 1974 – 5 April 1976
Punong Ministro	Harold Wilson
Nakaraang sinundan	Alec Douglas-Home
Sinundan ni	Anthony Crosland
Shadow Foreign Secretary
Nasa puwesto 19 April 1972 – 28 February 1974
Pinuno	Harold Wilson
Nakaraang sinundan	Denis Healey
Sinundan ni	Geoffrey Rippon
Home Secretary
Nasa puwesto 30 November 1967 – 19 June 1970
Punong Ministro	Harold Wilson
Nakaraang sinundan	Roy Jenkins
Sinundan ni	Reginald Maudling
Chancellor of the Exchequer
Nasa puwesto 16 October 1964 – 30 November 1967
Punong Ministro	Harold Wilson
Nakaraang sinundan	Reginald Maudling
Sinundan ni	Roy Jenkins
Parliamentary and Financial Secretary to the Admiralty
Nasa puwesto 2 March 1950 – 25 October 1951
Punong Ministro	Clement Attlee
Nakaraang sinundan	John Dugdale
Sinundan ni	Allan Noble
Parliamentary Secretary to the Ministry of Transport
Nasa puwesto 7 October 1947 – 2 March 1950
Punong Ministro	Clement Attlee
Nakaraang sinundan	George Strauss
Sinundan ni	George Lucas
Member of Parliament for Cardiff South and Penarth
Nasa puwesto 9 June 1983 – 11 June 1987
Nakaraang sinundan	Constituency Created
Sinundan ni	Alun Michael
Member of Parliament for Cardiff South East
Nasa puwesto 28 February 1950 – 9 June 1983
Nakaraang sinundan	Constituency Created
Sinundan ni	Constituency Abolished
Member of Parliament for Cardiff South
Nasa puwesto 26 July 1945 – 28 February 1950
Nakaraang sinundan	Arthur Evans
Sinundan ni	Constituency Abolished
Personal na detalye
Isinilang	Leonard James Callaghan 27 Marso 1912(1912-03-27) Portsmouth, United Kingdom
Yumao	26 Marso 2005(2005-03-26) (edad 92) Ringmer, United Kingdom
Partidong pampolitika	Labour
Asawa	Audrey Callaghan
Anak	Margaret Julie Michael
Propesyon	Trade union official
Serbisyo sa militar
Sangay/Serbisyo	Royal Navy
Ranggo	Lieutenant
Labanan/Digmaan	World War II

Si Leonard James Callaghan, Baron Callaghan of Cardiff, KG, PC (27 Marso 1912 – 26 Marso 2005) ay isang politiko ng Labour Party (UK) na naging Punong Ministro ng United Kingdom mula 1976 hanggang 1979 at Lider ng partidong Labour mula 1976 hanggang 1980. Si Callaghan hanggang ngayon ang tanging politiko sa kasaysayan ng United Kingdom na nagsilbi sa lahat ng apat na "Mga Dakilang Opisina ng Estado". Siya ay nagsilbing Kansilyer ng Exchequer mula 1964 hanggang 1967, Kalihimn ng Tahanan mula 1967 hanggang 1970, at Kalihim Pandayuhan mula 1974 hanggang sa kanyang pagkakahirang bilang Punong Ministro noong 1976.