Jack of Hearts is a six-part British television crime drama series, written by Sian Orrells and directed by Timothy Lay, that first broadcast on BBC One on 4 August 1999. Set and filmed in Cardiff, the series follows the life of a tough-talking probation officer, Jack Denby (Keith Allen), who finds that life and crime in the Welsh capital is much different to the workings of inner-city London, when he is forced to move away to join his girlfriend, Suzanne (Anna Mountford), a university lecturer.

The series was broadcast on Wednesdays at 21:30, and was also repeated on Thursdays and Saturdays on BBC Choice. The series was also accompanied by a theme written especially for the series, performed by Bonnie Tyler. The series has yet to be released on DVD.