Heckmann is a surname. Notable people with the surname include:
Alfred Heckmann (1914–1993), Luftwaffe flying ace of World War II
Friedrich Heckmann (born 1941), director of the research institute European forum for migration studies
Gustav Heckmann (1898 - 1996), German educator and philosopher
Otto Heckmann (1901–1983), German astronomer
Wilhelm Heckmann (1897–1995), German concert and easy listening musician