Mark Chappell is a British sitcom writer and screenwriter. His credits include My Life in Film (for BBC Three), Tony Blair, Rock Star (for Channel 4 Television/V Good Films), Perfect Day, The Millennium (for Five/World Productions), The Increasingly Poor Decisions of Todd Margaret, Flaked, and the fourth series of Cold Feet (for Granada). He is credited for writing the screenplay of the 2022 movie See How They Run. He attended Marling School, Stroud, Gloucestershire.