Frederick Clark

Frederick or Fred Clark may refer to:


 * Frederick Scotson Clark (1840–1883), English organist and composer
 * Frederick W. Clark (1857–1916), American engineer and businessman
 * F. Ambrose Clark (1880–1964), American equestrian heir
 * Patrick Clark (bishop) (Frederick Patrick Clark, 1908–1954), Canadian Anglican bishop
 * Fred Clark (1914–1968), American character actor
 * H. Fred Clark (1937–2012), American pediatrician and vaccinologist
 * Fred Clark (politician) (born 1959), American member of Wisconsin State Assembly
 * Frederick Le Gros Clark (author), British children's author and an expert on malnutrition
 * Frederick Le Gros Clark (surgeon), British surgeon