Antoninus of Sorrento was a 6th and 7th-century Italian abbot and hermit. Originally from Campagna, he joined the monastery at Monte Cassino, but the Lombard invasions forced him to flee to Rome. He eventually settled in the Campania region, where he served as a bishop in Castellammare di Stabia after being appointed by Saint Catellus. Later, he moved to Sorrento, where he served as the Benedictine abbot of the San Agrippino monastery.