Roelof Koekoek (b. 1963 in Leiden, The Netherlands) is Assistant Professor in the Delft Institute of Applied Mathematics at the Delft University of Technology, Delft, The Netherlands.
Koekoek is mainly a teacher of mathematics and has published a few papers on orthogonal polynomials. He is coauthor of the book Hypergeometric Orthogonal Polynomials and Their -Analogues).
Koekoek is coauthor of the following DLMF chapter
Koekoek served as a Validator for the original release and publication in May 2010 of the NIST Digital Library of Mathematical Functions and the NIST Handbook of Mathematical Functions.