Severus of Vienne (died c. 455) was a priest who evangelised in Vienne, France. He is venerated as a saint in the Catholic Church as well as in other denominations. Severus was reportedly Indian by birth and of wealthy origins. His entry in the Roman Martyrology reads: "At Vienne, in France, St. Severus, priest and confessor, who undertook a painful journey from India in order to preach the Gospel in that city, and converted a great number of Pagans to the faith of Christ by his labors and miracles."
Severus settled in Vienne around 430. He founded a church in honour of Saint Alban (now the church of Saint-Alban-du-Rhône) near Vienne. He died in Italy, but his body was brought back to Vienne and buried in the church dedicated to the protomartyr Saint Stephen, which he himself had constructed.
Lucas, Gérard (2018-10-18). "Anonyme, Vita Seueri". Vienne dans les textes grecs et latins: Chroniques littéraires sur l'histoire de la cité, des Allobroges à la fin du Ve siècle de notre ère. Travaux de la Maison de l’Orient et de la Méditerranée (in French). MOM Éditions. doi:10.4000/books.momeditions.1063. ISBN 978-2-35668-050-1.
"Vita Sancti Severi Viennensis presbyteri et confessoris". Analecta Bollandiana. 5: 416–424. 1 January 1886. doi:10.1484/J.ABOL.4.02099. ISSN 0003-2468. Retrieved 4 September 2021.