Jacobus Hendricus ("Jack") van Lint (1 September 1932 – 28 September 2004) was a Dutch mathematician, professor at the Eindhoven University of Technology, of which he was rector magnificus from 1991 till 1996.

He gained his Ph.D. from Utrecht University in 1957 under the supervision of Fred van der Blij.^[1] He was professor of mathematics at Eindhoven University of Technology from 1959 to 1997.

He was appointed a full professor at Eindhoven University of Technology at the age of 26 years. His field of research was initially number theory, but he worked mainly in combinatorics and coding theory.^[2]

Van Lint was honored with a great number of awards. He became a member of Royal Netherlands Academy of Arts and Sciences in 1972,^[3] received four honorary doctorates, was an honorary member of the Royal Netherlands Mathematics Society (Koninklijk Wiskundig Genootschap), and received a Knighthood.

• Coding Theory, 1971.
• Combinatorial Theory Seminar Eindhoven University of Technology, 1974^[4]
• Introduction to Coding Theory, Springer, Graduate Texts in Mathematics, 1982, 3rd. edition 1999.
• with Peter Cameron: Designs, Graphs, Codes and their Links, London Mathematical Society Lecture Notes, Cambridge University Press, 1980.
• with Richard M. Wilson: A Course in Combinatorics, Cambridge University Press, 1992. Van Lint, J. H.; Wilson, R. M. (2001). 2nd edition. ISBN 9781139430630.
• with Gerard van der Geer: Introduction to Coding theory and Algebraic Geometry, Birkhäuser, 1988.

• Seidel adjacency matrix
• Seidel switching