Mark Evans is a Welsh comedian, actor, and writer.

He has written for many U.K. radio and television programmes, including That Mitchell and Webb Look (2006), The Late Edition (2006), That Mitchell and Webb Sound (2003, 2005), Popetown (2005), and Ant & Dec's Saturday Night Takeaway (2002-2003). The pilot of his BBC Radio 4 comedy series Bleak Expectations was recorded in 2006, and the full series, starring Anthony Head and Celia Imrie, was recorded in April 2007 and broadcast in August 2007. The second series was recorded in May 2008. He has also appeared in That Mitchell and Webb Look, notably as David Mitchell's chiropractor; Saxondale (2006); and in several other television and radio programmes and commercials.

He has often written and performed with James Bachman. On 6 May 2008 they recorded the pilot of their BBC Radio 4 comedy Zoom, starring David Soul, Carla Mendonca and Jon Glover with a special guest appearance by Nicholas Parsons as himself.