Niewistka [ɲɛˈvʲistka] is a village in the administrative district of Gmina Dydnia, within Brzozów County, Subcarpathian Voivodeship, in south-eastern Poland. It lies approximately 6 kilometres (4 mi) north-east of Dydnia, 15 km (9 mi) east of Brzozów, and 38 km (24 mi) south-east of the regional capital Rzeszów.