Diamond Jack

Diamond Jack may refer to:


 * Diamond Jack, a Michigan car ferry
 * "Diamond Jack", a song by Wishbone Ash from the 1977 album Front Page News
 * "Diamond Jack", an episode from the 1982–83 season of Three's Company
 * Diamond Jack, a 2017 animated short by Rachel Kim
 * Diamond Jack and the Queen of Pain, a 1983 album by Kevin Ayers
 * Diamond Jack Duggan, a henchman of The Joker in Batman comics
 * Louis Alterie (1886–1935), American gangster