Euphronios of Autun was a 5th-century Catholic bishop who led the diocese of Autun. Serving as bishop by at least 451, he was regarded as a significant religious figure in Gaul during late antiquity. He maintained close relationships with other prominent clergy, including Bishop Lupus of Troyes, and participated in several episcopal consecrations, such as those in Chalon-sur-Saône and Bourges. His historical presence is documented through contemporary correspondence and ecclesiastical records of the era.