Sədərək is a village and the most populous municipality in the Sadarak Rayon of Nakhchivan, Azerbaijan. It is located to the north-east of the district center, on the Sadarak plain. Its population is engaged in grain-growing, vine-growing and animal husbandry. There are wine processing plants, a branch of the garment factory of Nakhchivan, two secondary schools, a primary school, kindergartens, technical creativity center, cultural house, club, library, children's music school, hospital, sanitary-epidemiological station, television transmitter and three mosques in the village. It has a population of 7,260.