Andrew Gelman (born February 11, 1965) is an American statistician, professor of statistics and political science, and director of the Applied Statistics Center at Columbia University. He earned an S.B. in mathematics and in physics from MIT in 1986 and a Ph.D. in statistics from Harvard University in 1990 under the supervision of Donald Rubin.
He has received the Outstanding Statistical Application award from the American Statistical Association three times. He is an elected fellow of the American Statistical Association and the Institute of Mathematical Statistics.
His sister is the psychologist Susan Gelman.
Andrew Gelman is currently a professor of political science and statistics at Columbia University, where he also directs the Applied Statistics Center. The Applied Statistics Center conducts research with several other departments at Columbia University, as well as containing a number of individual projects. Gelman is a practitioner of Bayesian statistics, and hierarchical models.