Pierre Colmez (born 1962) is a French mathematician and directeur de recherche at the CNRS (IMJ-PRG) known for his work in number theory and p-adic analysis.

Colmez studied at École Normale Supérieure and obtained his doctorate from Grenoble University.

-adic groups at the meeting point of Fontaine's and Langlands' programs.

[17] Colmez won the 2005 Fermat Prize for his contributions to the study of L-functions and p-adic Galois representations.

In 1998, he was an invited speaker at the International Congress of Mathematicians in Berlin.