Olba is a Roman Catholic titular see in the former Roman province of Isauria (a region of Asia Minor, in present Turkey), suffragan of Seleucia Trachea.
Corycus (Greek: Κώρυκος; also transliterated Corycos or Korykos) was an ancient city in Cilicia Trachaea, Anatolia, located at the mouth of the Calycadnus (now Göksu); the site is now occupied by the town of Kızkalesi (formerly Ghorgos), Mersin Province, Turkey.