David Crellin (born 1961) is an English actor.

Crellin, who was born in Sheffield, South Yorkshire, is known for roles in Emmerdale as Billy Hopwood, BBC 2's BAFTA Award-winning series The Cops as Alan Wakefield, and Coronation Street as gangster Jimmy Clayton, charge nurse Thornton who looked after Don Brennan after his car crash, and receiver Graham Baxter who wound up MVB Motors. He also starred as Jimmy Grainger in the first series of Waterloo Road on BBC One.

Signed to British independent record label Everyday Records 2008, Crellin recorded a debut EP Innocent Bystander. In 2010 he returned to Coronation Street in another role; that of Colin Fishwick, a teacher friend of John Stape. David trained to become an actor at the Rose Bruford College of Speech & Drama.

Crellin lives with his wife and children in Horwich, near Bolton.