Hugh of Ostia

Hugh or Hugo of Ostia (Ugo d'Ostia) may refer to:


 * Hugh of Ostia (died 1158), cardinal-bishop of Ostia from 1150
 * Pope Gregory IX, born Ugolino, cardinal-bishop of Ostia in 1206–1227
 * Hugh of Saint-Cher, cardinal-bishop of Ostia in 1261–1262
 * Hugh Aycelin, cardinal-bishop of Ostia in 1294–1297