List of Famous people born in Brittany, France

Jean-François Le Gall is a French mathematician working in areas of probability theory such as Brownian motion, Lévy processes, superprocesses and their connections with partial differential equations, the Brownian snake, random trees, branching processes, stochastic coalescence and random planar maps. He received his Ph.D. in 1982 from Pierre and Marie Curie University under the supervision of Marc Yor. He is currently professor at the University of Paris-Sud in Orsay and is a senior member of the Institut universitaire de France. He was elected to French academy of sciences, December 2013.

Georges Groussard is a retired French road cyclist. Groussard rode professionally from 1960 to 1967. He participated in 7 Tours de France, and wore the yellow jersey for 9 consecutive days in 1964. His best overall result was also in 1964, when he finished 5th place in the overall classification. His elder brother Joseph Groussard was also a professional cyclist.

Jean-Louis Colliot-Thélène, is a French mathematician. He is a Directeur de Recherches at CNRS at the Université Paris-Saclay in Orsay. He studies mainly number theory and arithmetic geometry.

Dorian Foulon is a French cyclist. He represented France at the 2020 Summer Paralympics.

Christophe Louis Yves Georges Pierre is French-born Roman Catholic prelate and diplomat in the service of the Holy See. An archbishop since 1995, he was appointed the apostolic nuncio (ambassador) to the United States on 12 April 2016, after serving as nuncio to Mexico from 2007 to 2016. He previously held the post of nuncio to Haiti and Uganda.