Mangin is a surname. Notable people with the surname include:
Claude Mangin (1786-1835), French judge Charles Mangin (1866–1925), French general Edward Mangin (1772–1852), Irish Anglican priest and writer Gregory Mangin (1907–1979), American tennis player and Wall Street broker Jean-Pierre Mangin (born 1937), French philatelist Nicole Girard-Mangin (1878-1919), in World War I became first woman medical doctor to serve in the French Army Patrice Mangin, French forensic pathologist Robert Mangin (1863–1944), British clergyman Sergio Mangín (born 1973), Argentine sprint canoer Stuart Mangin (born 1977), Australian rules footballer Thorleif Mangin (1896–1950), British colonial administrator
See also Mangin mirror, a type of back surface concave mirror