Hornaday is a surname. Notable people with the surname include:
Ann Hornaday, American film critic Jeffrey Hornaday, American choreographer and film director Mary J. Hornaday (1906–1982), American journalist Ron Hornaday Sr. (1931–2008), American racer Ron Hornaday Jr. (born 1958), NASCAR Camping World Truck Series driver Ronnie Hornaday, American racer William Hornaday, American minister William Temple Hornaday, American zoologist
See also Hornaday River, a river in Canada