Orthmann is a surname. Notable people with the surname include: Ernst Gottlob Orthmann (1859–1922), German gynecologist Hanna Orthmann (born 1998), German volleyball player Hans-Jürgen Orthmann (born 1954), German former long-distance runner Wilhelm Orthmann (1901–1945), German physicist Winfried Orthmann (born 1935), German archaeologist specializing in Near East regions See also Ortmann