Klug is a surname. Notable people with the surname include:Johann Christoph Friedrich Klug (1775–1856), German entomologist Bernd Klug (1914–1975), German naval officer Al Klug, American football player Aaron Klug, Lithuanian-born chemist Brian Klug, academic in U.K. Howard Klug, American clarinetist & academic Scott L. Klug, American politician Bryan Klug, English footballer John Klug, Australian footballer Gerald Klug, Austrian politician Chris Klug, American snowboarder Gerard Christopher Klug, American game designer
