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 (American football) (born 1944), former American college and professional football player Jack Harper (Canadian football) (1927–?), Canadian Football League player Jack Harper (tennis) (1914–2005), Australian tennis player Jack Harper (footballer) (born 1996), Scottish footballer Jack Harper (politician) (born 1967), American politician in Arizona