The former French diocese of Cavaillon existed until the French Revolution as a diocese of the Comtat Venaissin, a fief of the Church of Rome. It was a member of the ecclesiastical province headed by the Metropolitan Archbishop of Avignon. Its seat was at Cavaillon, in the south-eastern part of what is now France, in the modern department of Vaucluse.

The Archdiocese of Avignon is a Latin archdiocese of the Catholic Church in France. The diocese exercises jurisdiction over the territory embraced by the department of Vaucluse, in the Region of Provence-Alpes-Côte d'Azur. It is named for the prefecture of Avignon. The diocese has been led since January 2021 by Archbishop Georges Pontier, whom Pope Francis called out of retirement to serve as Apostolic Administrator.