McKinzie is a surname. Notable people with the surname include:
Barbara McKinzie, American accountant Edith Kawelohea McKinzie, Hawaiian genealogist, writer, and hula expert Ralph McKinzie (1894–1990), American football, baseball and basketball coach
See also McKinzie Islands, islands of Antarctica Ralph McKinzie Field, a baseball venue in DeKalb, Illinois McKinzie - a thoroughbred racehorse