Demirköy may refer to the following places in Turkey: Demirköy, Kırklareli, a town and a district in Kırklareli Province Demirköy, Lalapaşa, a town or village in District of Lalapaşa, Edirne Province Demirköy, Nallıhan, a village in District of Nallıhan, Ankara Province Demirköy, Pazaryeri, a village in District of Pazaryeri, Bilecik Province Demirköy, Yusufeli, a village in Yusufeli District, Artvin Province Demirköy Foundry, a historic foundry ruin