Jean-Marc Deshouillers (born on September 12, 1946[1] in Paris) is a French mathematician, specializing in analytic number theory.

Deshouillers attended the Paris École Polytechnique,[2][3] graduating with an engineer diploma in 1968.

He received his PhD in 1972 at the University Paris VI Pierre et Marie Curie.

In the seventies, he was assistant professor in mathematics at the École Polytechnique, which moved from Paris to Palaiseau.

Together with François Dress and Gérald Tenenbaum he discovered the DDT theorem.