Beckmann is a German surname. Notable people with the surname include:
Ernst Otto Beckmann (1853–1923), German chemist and discoverer of the Beckmann rearrangementJohann Beckmann (1739–1811), German scientific authorJuan Domingo Beckmann (born 1967), Mexican businessmanJuan Beckmann Vidal (born 1940), Mexican businessmanMax Beckmann (1884–1950), German painterPetr Beckmann (1924–1993), Czech-American dissident physicistReinhold Beckmann (born 1956), German journalist and TV presenterRudolf Beckmann (1910–1943), German Nazi SS-OberscharführerJosef Beckmann (1920–2001), World War II German lieutenant