Delphin de Bordeaux was a 4th-century presbyter and the first historically documented bishop of Bordeaux. Serving as archbishop from 380 until his death in 404, he was a significant figure in the church of Gallia Aquitania. He is recognized for his role in converting Saint Paulinus of Nola to Christianity and for his participation in the Council of Saragossa in 380, where the Priscillianist heresy was addressed. He maintained connections with other prominent leaders, such as Ambrose, the bishop of Milan.