Antoninus of Pamiers is an early martyr of southern Gaul, traditionally honored as a missionary preacher in Aquitaine and venerated as the patron saint of Pamiers in south-western France and of Palencia and Medina del Campo in Spain. He is commemorated on September 2. Among the saints of the pre-schism West, his cult is long-established and widespread, but the surviving accounts of his life are legendary rather than documentary, and his historicity and exact identity are regarded as uncertain.
By tradition he was born at Fredelacum, the site of the later town of Pamiers, and after his conversion made a pilgrimage to Rome, where he was ordained. Returning to Gaul, he preached the Gospel in Aquitaine, especially in the border regions of the Rouergue, on account of which later tradition called him the 'Apostle of the Rouergue.' He is said to have been martyred at Vallis Nobilis, the place that took his name as Saint-Antonin-Noble-Val.
The details of his life are unusually unstable in the sources. His martyrdom has been dated by various writers to the first, second, fourth, and fifth centuries, and competing legends differ even on his birthplace and ministry, a confusion that arises from the conflation of several distinct saints named Antoninus. For this reason later hagiographers and modern scholars alike caution that no reliable account of his life survives.