The Archdiocese of Dijon is a Latin diocese of the Catholic Church in France. The archepiscopal see is Dijon Cathedral, which is located in the city of Dijon. The diocese comprises the entire department of Côte-d'Or, in the Region of Bourgogne. Originally established as the Diocese of Dijon in 1731, and suffragan to the Archdiocese of Lyon, the diocese was elevated to the rank of archdiocese in 2002. The most significant jurisdiction change occurred after the Concordat of 1801, when the diocese annexed the department of Haute-Marne. In 1821, a papal bull re-established the Diocese of Langres. Since 2022 the archbishop has been Antoine Hérouard.

Dijon Cathedral, or the Cathedral of Saint Benignus of Dijon, is a Roman Catholic church located in the town of Dijon, Burgundy, France, and dedicated to Saint Benignus of Dijon. The Gothic cathedral building, constructed between 1280 and 1325, and dedicated on 9 April 1393, is a listed national monument.