Hammer is a surname. Notable people with the surname include: A.J. Hammer (born 1966), American television and radio personality Angela Hutchinson Hammer (1870–1952), American newspaper publisher Anna M. Hammer (1840–1910), American philanthropist and temperance movement leader Anthony Hammer, Australian actor Armand Hammer (1898–1990), U.S. physician, entrepreneur, oil magnate and art collector Armie Hammer (born 1986), American actor Barbara Hammer (1939–2019), American film maker Beatrice Hammer (born 1963), French writer Bernhard Hammer (1822–1907), Swiss president Bob Hammer (born 1930), American jazz pianist, composer and arranger Caroline Hammer (1832–1915), Danish photographer Cec Hammer (1926–2013), Australian rules footballer Charles Christian Hammer (1952–2004), American classical guitarist Chuck Hammer, American guitarist and composer Doc Hammer, American musician, actor, film and television writer, voice actor, and painter Edward E. Hammer (1931-2012), engineer who was at the forefront of fluorescent lighting research Ellen Hammer (1921-2001), American historian Emanuel Frederick Hammer (1926–2005), American psychologist and author Emerson Hammer (1856–1940), American politician Ernst Hammer (1884-1957), highly decorated Generalleutnant in the Wehrmacht during World War II Ernest E. L. Hammer (1884–1970), American lawyer, politician, and judge Frederic E. Hammer (1909–1980), New York politician and judge Friedrich Julius Hammer (1810–1862), German poet Heathcote Hammer (1905-1961), Australian World War II general JD Hammer (born 1994), American Major League Baseball pitcher for the Philadelphia Phillies Jan Hammer (born 1948), composer Jay Hammer (born 1944), American actor John Hammer (born 1935), founder of sporting competitions for older players Jon Ludvig Hammer (born 1990), Norwegian chess player Jørgen Hammer (born 1991), Norwegian association football player Joshua Hammer (born 1957), American journalist Julie Hammer (born 1955), Royal Australian Air Force air vice marshal, first woman to be promoted to one-star and two-star rank Kim Hammer (born 1958), member of the Arkansas House of Representatives Kristian Hammer (born 1976), Norwegian Nordic combined skier Lance Hammer, American independent filmmaker Lisa Hammer (born 1967), American filmmaker, actress, composer and singer Marion P. Hammer, American gun rights activist, first female president of the National Rifle Association Michael Hammer (disambiguation), multiple people Moshe Hammer (born 1946), Canadian violinist Peter Ladislaw Hammer (1936-2006), Romanian-born American mathematician Reuven Hammer (born 1933), Conservative Jewish rabbi, scholar, author and lecturer Sarah Hammer (born 1983), American professional racing cyclist and two-time Olympic silver medalist Simon Christian Hammer (1866–1932), Norwegian writer and journalist Victor Hammer (1882–1967), Austrian-born American painter, sculptor, printer and typographer William C. Hammer (1865-1930), U.S. Representative from North Carolina William Joseph Hammer (1858–1934), American