Pyramids of Mars is the third serial of the 13th season of the British science fiction television series Doctor Who. Written by Robert Holmes and Lewis Greifer under the pseudonym of "Stephen Harris" and directed by Paddy Russell, the serial was first broadcast in four weekly parts on BBC1 from 25 October to 15 November 1975.

The thirteenth season of British science fiction television series Doctor Who began on 30 August 1975 with the story Terror of the Zygons, and ended with The Seeds of Doom. This is the second series to feature the Fourth Doctor, played by Tom Baker, with Philip Hinchcliffe producing and Robert Holmes script editing. In September 2009, it was ranked as readers' favourite season in Doctor Who Magazine issue 413.