R. Kent Dybvig is a professor emeritus of computer science at Indiana University Bloomington, in Bloomington, Indiana. His research focuses on programming languages, and he is the principal developer of the optimizing Chez Scheme compiler and runtime system which were initially released in 1985. Together with Daniel P. Friedman, he has long advocated the use of the Scheme language in teaching computer science. He retired from Indiana University to join Cisco in 2011.