Simon Langton (born 5 November 1941 in Amersham, Buckinghamshire) is an English television director and producer. He is the son of David Langton, the actor who played Richard Bellamy in Upstairs, Downstairs.
After he had directed many TV drama series and serials during the 1970s, his version of the John le Carré novel Smiley's People (1982, adapted by John Hopkins) was nominated for both a BAFTA Award in the UK, and an Emmy Award in the US. He also received a BAFTA nomination for the series Mother Love (1989), starring Diana Rigg.
He is perhaps best known for directing the adaptation of Pride and Prejudice (1995) starring Colin Firth and Jennifer Ehle, for which he was again nominated for a BAFTA. He directed episodes of Rosemary and Thyme and Midsomer Murders.