Jack Gardner may refer to: Jack Gardner (basketball) (1910–2000), college basketball coach Jack Gardner (boxer) (1926–1978), British heavyweight boxer Jack Gardner (general), general in the United States Army Jack Gardner (musician) (1903–1957), American jazz musician John Lowell Gardner (1837–1898), American art collector and philanthropist Jack Gardner (actor) (1902–1977), American film actor in The Secret Code