Conviction is a British television crime drama that premiered on BBC Three on 7 November 2004. The six-part series stars William Ash, David Warner, Ian Puleston-Davies, Reece Dinsdale, Nicholas Gleaves, Laura Fraser, Jason Watkins and Zoe Henry.

The series was created and was written by Bill Gallagher (previously known for Clocking Off and Out of the Blue), produced by Red Production Company, and directed by Marc Munden (Vanity Fair, Canterbury Tales: The Knight's Tale). The producer was Ann Harrison-Baxter (The Second Coming, The Cops), with Nicola Shindler and Gareth Neame as executive producers for Red Production Company and the BBC respectively.The storyline was later used as the basis for the movie Blood, starring Paul Bettany, Mark Strong and Brian Cox.