Mark Hart (born July 2, 1953, Fort Scott, Kansas, USA) is an American musician and multi-instrumentalist. He is a member of both Supertramp
(1986–1988, 1996–2002, 2015-present) and Crowded House
(1993–1996, 2007–present). As well as being a group member, touring and session musician, Hart has composed film scores and is a record producer.