Ebbinghaus is a German surname. It may refer to: Bernhard Ebbinghaus (Born 1961), a German sociologist Heinz-Dieter Ebbinghaus (born 1939), a German mathematician Hermann Ebbinghaus (1850–1909), a German psychologist the Ebbinghaus illusion, in experimental psychology Julius Ebbinghaus (1885–1981), a German philosopher