Harold Smith

Harold Smith may refer to:

Entertainment

 * Harold Jacob Smith (1912–1970), American screenwriter
 * Harold J. Smith (1912–1980), TV actor better known as Jay Silverheels
 * Harold Smith (Twin Peaks), fictional television character

Politics

 * Harold Smith (New Zealand politician) (1866–1936), New Zealand MP
 * Harold Smith (British politician) (1876–1924), MP for Warrington, 1910–1922, and Liverpool Wavertree, 1922–1923
 * Harold Gengoult Smith (1890–1983), Australian medical practitioner and Lord Mayor of Melbourne
 * Harold D. Smith (1898–1947), American budget director during World War II
 * Harold Palmer Smith Jr. (born 1935), assistant secretary of Defense

Science

 * Harold Hill Smith (1910–1994), American geneticist
 * Harold Smith (scientist) (born 1954), founder and CEO of OyaGen

Sports

 * Harold Smith (diver) (1909–1958), American diver and Olympic gold medalist
 * Harold Smith (gridiron football) (born 1962), American football player

Other

 * Harold Page Smith (1904–1993), United States Navy admiral
 * J. Harold Smith (1910–2001), Southern Baptist evangelist
 * Harold Smith (detective) (1926–2005), art detective