Akçakoca is both a town and district of Düzce Province, in the Black Sea region of Turkey, located about 200 km east of Istanbul. The town was named after a Turkish chieftain of the 14th century CE who captured the area for the Ottoman Empire, and sports a statue in his honor. The town features a modern mosque of unusual design. Tourist attractions include beaches and a small ruined castle. It is the regional center of hazelnut cultivation.