James Berger Orlin (born April 19, 1953)^[1] is an American operations researcher, the Edward Pennell Brooks Professor in Management and Professor of Operations Research at the MIT Sloan School of Management.^[2]

Orlin did his undergraduate studies at the University of Pennsylvania, receiving a bachelor's degree in mathematics in 1974. In 1976, he earned two master's degrees, an MSc from California Institute of Technology and an MMath from University of Waterloo.^[3] Orlin received his Ph.D. in operations research from Stanford University in 1981 under the supervision of Arthur Fales Veinott Jr.^[1][2][4] He joined the MIT faculty as an assistant professor in 1979, and became the Brooks Professor in 1998.^[1]

He is the author of the book Network Flows: Theory, Algorithms, and Applications (with Thomas L. Magnanti and Ravindra K. Ahuja, Prentice Hall, 1993), for which he and his co-authors were the recipients of the 1993 Frederick W. Lanchester Prize of the Institute for Operations Research and the Management Sciences.^[5]

He is also a Fellow of INFORMS^[6] and a Margaret MacVicar Faculty Fellow, MIT's highest teaching honor.^[7]