Jack Dempsey (disambiguation)

Jack Dempsey (1895–1983) was a heavyweight boxing champion.

Jack Dempsey may also refer to:

Sports

 * Jack Dempsey (wrestler) (1920–2007), British wrestler
 * Jack "Nonpareil" Dempsey (1862–1896), Irish-born middleweight boxing champion
 * Jack Dempsey (Australian footballer) (1919–2006), Australian rules footballer
 * Jack Dempsey (American football) (1913–1988), American football tackle
 * Jack Dempsey (rugby union) (born 1994), Australian-Scottish rugby player
 * Jack Dempsey (Gaelic footballer) (1878–1913), Irish Gaelic footballer
 * Jack Dempsey (rugby league) (1907–1951), Australian rugby league player

Other uses

 * Jack Frost (musician) (born 1968), American guitarist, born Jack Dempsey
 * Ken Goldstein (born 1969), aka Jack Dempsey, American filmmaker, occasional actor and musician
 * Jack Dempsey (politician) (born 1966), Australian politician
 * Jack Dempsey (fish), a species of cichlid