The Fatih Mosque is a mosque in Ortahisar district of Trabzon Province, Turkey. It was originally built in Byzantine times as the Panagia Chrysokephalos Church (Greek: Παναγία Χρυσοκέφαλος, "Panagia the Golden-Headed"), serving as both the catholicon for the see of Trebizond, and a church for a monastery until the Ottoman conquest of the city in 1461. The Fatih Mosque also displays the most beautiful samples of the Ottoman writing arts.