(anc. Cotyora, where the "Ten Thousand" embarked for home), a town on the N. coast of Asia Minor, between Samsun and Kerasund, connected with Zara, and so with Sivas, by a .carriage road, and with Constantinople and Trebizond by steamer. Pop. about 6000, more than half Christian. Ordu has exceptionally good Greek schools, and a growing trade in filberts.