Simon Beaufoy (/ˈboʊfɔɪ/; born 26 December 1966) is a British screenwriter. Born in Keighley, West Riding of Yorkshire, he was educated at Malsis School in Glusburn, Ermysted's Grammar School and Sedbergh School, he read English at St Peter's College, Oxford and graduated from Arts University Bournemouth. In 1997, he earned an Oscar nomination for Best Original Screenplay for The Full Monty. He went on to win the 2009 Academy Award for Best Adapted Screenplay for Slumdog Millionaire as well as winning a Golden Globe and a BAFTA award. Beaufoy also earned further Oscar, BAFTA and Golden Globe nominations for his co-written adaptation of Aron Ralston's autobiography Between a Rock and a Hard Place titled 127 Hours.

Beaufoy has also completed adaptations of The Raw Shark Texts by Steven Hall and the 2011 film version of Salmon Fishing in the Yemen by Paul Torday, as well as new adaptations of The Full Monty as both a stage play and limited television series.