Pierre-Louis Lions is a French mathematician who was awarded the Fields Medal in 1994 for his work on partial differential equations. Lions earned a doctorate from the University of Paris VI in 1979. He is a member of the French Academy of Sciences and Professor at the College de France. For his outstanding contributions to mathematics and its applications, he has received many prestigious awards, including the Doistau-Blutet Foundation Prize, the Ampère Prize, the IBM Prize and the Philip Morris Prize.