Iosif Ilyich Gikhman (Ukrainian: Іосиф Ілліч Гіхман; May 26, 1918 – July 30, 1985) was a Soviet mathematician. Gikhman is well-known for a comprehensive treatise on the theory of stochastic processes, co-authored with Skorokhod.In the words of mathematician and probability theorist Daniel W. Stroock "Gikhman and Skorokhod have done an excellent job of presenting the theory in its present state of rich imperfection.”