Jack Clark may refer to:
Arts and media
- Jack Clark (Australian director), writer-director of the 2023 horror film Birdeater
- Jack Clark (television personality) (1925–1988), American television game show host and announcer
- Jack J. Clark (1879–1947), American actor and director
Sportsmen
- Jack Clark (baseball) (born 1955), Major League Baseball player
- Jack Clark (cricketer) (born 1994), English cricketer
- Jack Clark (footballer) (1924–2012), Australian footballer
- Jack Clark (rugby union), American rugby coach and former rugby union player
Others
- Jack Clark (AI policy expert), co-founder of Anthropic
See also
- Jack Clarke (disambiguation)
- Jackie Clark (disambiguation)
- John Clark (disambiguation)