Maziarnia [maˈʑarɲa] is a village in the administrative district of Gmina Harasiuki, within Nisko County, Subcarpathian Voivodeship, in south-eastern Poland. It lies approximately 8 kilometres (5 mi) north-west of Harasiuki, 21 km (13 mi) east of Nisko, and 63 km (39 mi) north-east of the regional capital Rzeszów.