Jack Harper
Jack Harper may refer to:
- Jack Harper , pitcher in Major League Baseball
- Jack Harper , American pitcher in Major League Baseball
- Jack Harper , Australian tennis player
- Jack Harper , Canadian Football League player
- Jack Harper , former American college and professional football player
- Jack Harper , American politician in Arizona
- Jack Harper , Scottish footballer
Fictional characters
- Jack Harper, 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, 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