Fidentius () may refer to:
Fidentius and Terence, probably fictitious saints Fidentius Armenus (fl. 2nd century), legendary saint Fidentian (d. 304), bishop of Hippo Regius, martyr Fidentius (fl. 411), Donatist bishop of Collo Fidentius (fl. 705), bishop of Zuglio Fidentius of Padua (fl. 1226–1291), Franciscan friar Fidentius (fl. 1261–1274), bishop of Aversa