The Diocese of Périgueux and Sarlat (Latin: Dioecesis Petrocoricensis et Sarlatensis; French: Diocèse de Périgueux et Sarlat) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in France.

The Martyrology of Ado gives St. Front as the first bishop of Périgueux; Saint Peter is said to have sent him to this town with the St. George to whom later traditions assign the foundation of the church of Le Puy.

Subsequent biographies, which appeared between the 10th and 13th centuries, make St. Front's life one with that of St. Fronto of Nitria, thereby giving it an Egyptian colouring.

At all events we know by the Chronicle of Sulpicius Severus that a Bishop of Périgueux, Paternus, was deposed for heresy about 361.

Among its bishops are: The Abbey of Saint-Sauveur of Sarlat, later placed under the patronage of St. Sacerdos of Limoges, seems to have existed before the reigns of Pepin the Short and Charlemagne who came there in pilgrimage and because of their munificence deserved to be called "founders" in a Bull of Pope Eugene III (1153).