The Kızılırmak Delta (Turkish: Kızılırmak Deltası) is the delta of the Kızılırmak River. It is the biggest wetland in the Black Sea Region and is one of several internationally important Ramsar sites in Turkey. All of the first and second delta plains and most of the third delta plain is dominated by agriculture. It is important for biodiversity of plants and birds. It is 40 km from Samsun.