Mesudiye, formerly Hamidiye, (in Greek Μεσουδιέ and Μιλάς) is a town and district of Ordu Province in the Black Sea region of Turkey. According to the 2000 census, population of the district is 28,551 of which 5,665 live in the town of Mesudiye. The district covers an area of 1,100 km2 (425 sq mi), and the town lies at an elevation of 1,308 m (4,291 ft).