The Diocese of Autun (–Chalon-sur-Saône–Mâcon–Cluny), more simply known as the Diocese of Autun, is a Latin Church diocese of the Catholic Church in France. The diocese comprises the entire Department of Saone et Loire, in the Region of Bourgogne.

The former bishopric of Mâcon was located in Burgundy. The bishopric of Macon was established as a suffragan of Lyon. The existence of Mâcon as a separate diocese ended at the French Revolution.