Nietiahy [ɲɛˈtjaxɨ] is a village in the administrative district of Gmina Dębowa Kłoda, within Parczew County, Lublin Voivodeship, in eastern Poland. It lies approximately 5 kilometres (3 mi) east of Dębowa Kłoda, 16 km (10 mi) east of Parczew, and 52 km (32 mi) north-east of the regional capital Lublin.