Tinker Tailor Soldier Spy is a 1979 British seven-part spy drama by the BBC. John Irvin directed and Jonathan Powell produced this adaptation of John le Carré's novel Tinker Tailor Soldier Spy (1974). The serial, which stars Alec Guinness, Alexander Knox, Ian Richardson, Michael Jayston, Bernard Hepton, Anthony Bate, Ian Bannen, George Sewell and Michael Aldridge, was shown in the United Kingdom from 10 September to 22 October 1979, and in the United States beginning on 29 September 1980. The US version was re-edited from the original seven episodes to fit into six episodes.

Tinker Tailor Soldier Spy is a 1974 spy novel by British-Irish author John le Carré. It follows the endeavours of taciturn, aging spymaster George Smiley to uncover a Soviet mole in the British Secret Intelligence Service. The novel has received critical acclaim for its complex social commentary—and, at the time, relevance, following the defection of Kim Philby. It has been adapted into both a television series and a film, and remains a staple of the spy fiction genre.