Cédric Villani, French mathematician and academic
Cédric Patrice Thierry Villani (French: [se.dʁik pa.tʁis tje.ʁi vi.la.ni]; born 5 October 1973) is a French politician and mathematician working primarily on partial differential equations, Riemannian geometry and mathematical physics. He was awarded the Fields Medal in 2010 and he was the director of Sorbonne University's Institut Henri Poincaré from 2009 to 2017.

Villani has given two lectures at the Royal Institution, the first titled 'Birth of a Theorem'. The English translation of his book Théorème vivant (Living Theorem) has the same title. His second lecture at the Royal Institution is titled 'The Extraordinary Theorems of John Nash'.Villani was elected as the deputy for Essonne's 5th constituency in the National Assembly, the lower house of the French Parliament, during the 2017 legislative election. He was elected as a member of La République En Marche! (REM), but in May 2020 left the party to form a new party, Ecology, Democracy, Solidarity. He was elected Vice President of the French Parliamentary Office for the Evaluation of Scientific and Technological Choices in July 2017.