Harry Warner (1881–1958), co-founder of Warner Bros.
Harry Warner may also refer to:
Harry Warner Jr. (1922–2003), journalist, science fiction fan and historian Harry Warner (baseball) (1928–2015), American baseball outfielder, coach and manager Harry Waldo Warner (1874-1945), English composer and viola player Harry Warner (Shortland Street), a character on the New Zealand soap opera Shortland Street
See also Harold J. Warner (1890–1982), American attorney and judge in Oregon Henry Warner (disambiguation)