Oliver of Ancona was an eleventh-century Benedictine monk whose origins are subject to various historical traditions. While some accounts suggest he was of Armenian descent, others propose he was a Camaldolese monk hailing from Dalmatia. He resided at the monastery of Santa Maria di Portonuovo, located near the foot of Monte Conero in the Italian Adriatic region. He died in Ancona around 1050, following a life dedicated to his religious order.