Guy Henniart (born 1953, Santes) is a French mathematician at Paris-Sud 11 University. He is known for his contributions to the Langlands program, in particular his proof of the local Langlands conjecture for GL(n) over a p-adic local field—independently from Michael Harris and Richard Taylor—in 2000.[1]
Henniart attained his doctorate from the University of Paris V in 1978, under supervision of Pierre Cartier with thesis Représentations du groupe de Weil d’un corps local. He was a member of Nicolas Bourbaki.[2] Henniart was an invited speaker at the International Congress of Mathematicians in 2006 at Madrid and gave a talk On the local Langlands and Jacquet-Langlands correspondences.