ITV3 is a British digital television channel owned and operated by ITV plc. It launched on 1 November 2006 and is available on Freeview, Sky, Virgin Media, and Freesat. The channel primarily broadcasts repeats of popular ITV programmes from the 1960s to the present day, including dramas, comedies, documentaries, and factual programming.

Some of the notable programmes that have been shown on ITV3 include «Heartbeat», «Foyle's War», «The Bill», «Midsomer Murders», «Agatha Christie's Poirot», and «Doc Martin». ITV3 also broadcasts a variety of other programming, such as «Classic Coronation Street», «Classic Emmerdale», and «The World at War».

ITV3 is a popular channel for viewers who enjoy classic television programming. The channel's schedule is generally aimed at an older audience, but it also attracts viewers who are interested in British television history or who simply enjoy watching classic programmes.