Klinger is a surname. Notable people with the surname include:
Bob Klinger (1908–1977), American baseball player
Chad Klinger, Canadian country music artist
Dietmar Klinger (born 1958), German football player
Fausto Klinger (born 1976), Ecuadorian soccer player
Friedrich Maximilian Klinger (1752–1831), German dramatist and novelist
Gustav Klinger (1876–1937), Russian Bolshevik politician
Jeff Klinger, American comedian
Joe Klinger (1902–1960), American baseball player
Julius Klinger (1876–1942), Austrian painter and illustrator
Leslie S. Klinger (born 1946), American attorney and writer
Margrit Klinger (born 1960), West German middle distance runner
Marino Klinger (1936–1975), Colombian footballer
Martin Klinger (born 1980), Ecuadorian association football player
Max Klinger (1857–1920), German symbolist artist
Maxwell Klinger, fictional character from the M*A*S*H TV series
Michael Klinger (producer) (1921–1989), British film producer
Michael Klinger (born 1980), Australian cricketer
Miroslav Klinger (1893–1979), Czech gymnast
Nir Klinger (born 1966), Israeli football manager and former player
Ron Klinger, Australian bridge player and author
Stefan Klinger (born 1978), German ski mountaineer
Tim Klinger (born 1984), German professional road bicycle racer