Fabien Verdier (born 16 April 1981) is a French politician. He has served as mayor of Châteaudun and as president of since 2020. From 2015 to 2021, he was a member of the Regional Council of Centre-Val de Loire. In the 2017 legislative election, he was a candidate for the National Assembly in Eure-et-Loir's 4th constituency. In the 2017 Socialist Party presidential primary, he was a candidate for the Socialist Party nomination for the French presidential election.