Jean-Paul Delahaye (born 29 June 1952 in Saint-Mandé Seine) is a French computer scientist and mathematician.

Since 1991 he has written a monthly column in Pour la Science, the French version of Scientific American, dealing with mathematical games and recreations, logic, and computer science.

[1] He is a contributing author of the online scientific journal Interstices[2] and a science and mathematics advisor to the Encyclopædia Britannica.

Delahaye won the 1998 d'Alembert prize from the Société mathématique de France for his books and articles popularizing mathematics, especially for the book Le fascinant nombre Pi.

This article about a French mathematician is a stub.