Saint Ferreolus soldier and martyr of Vienne (†304) (French: St Ferréol) is an early Christian Saint and Martyr. He was an officer in the Roman imperial army at Vienne, Gaul (present-day France). He sheltered St. Julian of Brioude and was arrested by the local governor, Crispin. Scourged and imprisoned, Gerreoulus escaped miraculously but was recaptured and beheaded. His Feastday is celebrated on September 18.