Olszanica [ɔlʂaˈɲit͡sa] is a village in the administrative district of Gmina Zagrodno, within Złotoryja County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 6 kilometres (4 mi) west of Zagrodno, 12 km (7 mi) north-west of Złotoryja, and 87 km (54 mi) west of the regional capital Wrocław.