Isaak Moiseevich Milin, (????? ????????? ?????); * February 16, 1919, Oster, Ukrainian Soviet Socialist Republic – †November 17, 1992 Saint-Petersburg (former Leningrad), Russian Federation) was a prominent Soviet/Russian mathematician, doctor of science in physics and mathematics, senior researcher, specialist in Geometric Theory of Functions of a Complex Variable and Applied Mathematics, engineer-lieutenant-colonel at the Soviet Air Force.