Valerian of Cimiez was a 5th-century bishop and church historian residing in southern Gaul. He is primarily recognized for his involvement in ecclesiastical politics, specifically for signing a formal letter sent by Gallic bishops to Pope Leo I in 451. Beyond his administrative role, he was a prolific writer whose works focused on asceticism and monastic life. His writings have been preserved through various historical collections, ensuring his intellectual contributions to the early church remained accessible to later scholars.