Stewart Harcourt is a British screenwriter and showrunner. He has created, written, and executive produced the series Maigret (ITV, 2016), Agatha Raisin (Sky, 2016), Love and Marriage (ITV, 2013), Jericho (ITV, 2005) and Hearts and Bones (BBC, 2000-2001).

He has written screenplays for Agatha Christie's shows Poirot and Marple, and also adapted the novels Treasure Island for Sky, Dracula for BBC, and Churchill's Secret for ITV.