Jack Harper

Jack Harper may refer to:


 * Jack Harper (1900s pitcher) (1878–1950), pitcher in Major League Baseball
 * Jack Harper (1915 pitcher) (1893–1927), American pitcher in Major League Baseball
 * Jack Harper (tennis) (1914–2005), Australian tennis player
 * Jack Harper (Canadian football) (1927–), Canadian Football League player
 * Jack Harper (American football) (1944–), former American college and professional football player
 * Jack Harper (politician) (1967–), American politician in Arizona
 * Jack Harper (footballer) (1996–), Scottish footballer

Fictional characters

 * Jack Harper (Tru Calling), a character in the television series Tru Calling
 * Jack Harper, the real identity of the Illusive Man in the Mass Effect video game series
 * Jack Harper (On the Buses), a character in the British sitcom On the Buses
 * Jack Harper, one of the main characters in the novel Can You Keep a Secret? by Sophie Kinsella
 * Dr. Jack Harper, a character in the 2007 film Awake, played by Terrence Howard
 * Jack Harper, the main protagonist in the 2013 film Oblivion, played by Tom Cruise