The Archdiocese of Lyon (Latin: Archidiœcesis Lugdunensis; French: Archidiocèse de Lyon), formerly the Archdiocese of Lyon–Vienne–Embrun, is a Latin Church metropolitan archdiocese of the Catholic Church in France. It is the oldest diocese in France and one of the oldest in Western Christianity. The archbishops of Lyon hold the honorary title of primates of Gaul. They are traditionally elevated by the pope to the rank of cardinal.
Olivier de Germay was appointed archbishop of Lyon on 22 October 2020. He is assisted by three auxiliary bishops: Patrick Le Gal (since 2009), Loïc Lagadec, and Thierry Brac de La Perrière (both since 2023).