Peter Flannery (born 12 October 1951) is an English playwright best known for his work as resident playwright of Royal Shakespeare Company in the late 1970s and early l980s. His plays written doing this period include Savage Amusement (1978), Awful Knawful (1978), and Our Friends in the North (1982).
In the world of film and television he is known for his adaptation of Our Friends in the North into a BBC mini-series in 1996 which has been voted by the British Film Institute as one of The 100 Greatest British Television Programmes. His other script writing awards include one for Inspector George Gently (2007) and another for The Devil's Whore (2008). It is also during this successful period that he wrote the screenplay for the 2008 Agatha Christie's Poirot episode Third Girl.