Dorr and Dörr are surnames of German origin. Notable people include:
Bert Dorr (1862–1914), American Major League Baseball pitcher Charles Dorr (1852–1914), U.S. Representative from West Virginia Ebenezer P. Dorr (1817–1882), American mariner and meteorologist Esteban Dorr (born 2000), French table tennis player Franz Dörr (1913–1972), German World War II fighter ace Friedrich Dörr (1908–1993), German Catholic priest, professor of theology and hymnwriter Gustav Dörr (1887–1928), German World War I fighter pilot Hans Dorr (1912–1945), German Waffen-SS Obersturmbannführer John V. N. Dorr (1872–1962), American industrial chemist Julia Caroline Dorr (1825–1913), American author Kevin Dorr, American musician Larry Dorr, manager of Blood, Sweat & Tears Laurence Joseph Dorr (b. 1953), American botanist Rheta Childe Dorr (1868–1948), American author and social worker Richard Everett Dorr (1943–2013), United States federal judge Robert F. Dorr (1939-2016), U.S. diplomat and author Thomas Wilson Dorr (1805–1854), leader of the Dorr Rebellion in Rhode Island Wilhelm Dörr (1881–1955), German track and field athlete Wilhelm Dörr (Nazi) (1921-1945), German SS and concentration camp officer executed for war crimes