Delbrück is a German surname. Notable people with the surname include: Berthold Delbrück (1842–1922), linguist Clemens von Delbrück, German politician Gottlieb Adelbert Delbrück (1822–1890), lawyer, founder of Deutsche Bank Hans Delbrück (1848–1921), historian Max Delbrück (chemist) (1850–1919), chemist Max Delbrück (1906–1981), biologist Richard Delbrück (1875–1957), German archaeologist Rudolf von Delbrück (1817–1903), German politician German-language surnames sv:Delbrück