Klostermann is a German surname. Notable people with the surname include: August Klostermann (1837–1915), German theologian Karel Klostermann (1848–1923), Czech and Austrian writer Lukas Klostermann (born 1996), German footballer See also Closterman Pierre Clostermann (1921–2006), World War II French fighter pilot Kloosterman German-language surnames de:Clostermann