John Rowan may refer to:
John Rowan (American football) (1896–1967) John Rowan (footballer) (1890-1963), Scottish footballer John Rowan (high sheriff) (1778–1855), Irish high sheriff and militia officer John Rowan (Kentucky politician) (1773–1843), politician and jurist from the U.S. state of Kentucky John Rowan (New York), assemblyman 1777-78 John Rowan (psychologist), author, counselor, psychotherapist and clinical supervisor John Rowan (United States Navy) (1919–2012), U.S. Navy captain John Rowan (Vietnam War veteran), sixth National President of Vietnam Veterans of America John M. Rowan (1829–?), politician from the U.S. state of Virginia
See also Jon Rowan, English footballer