Kwaszenina [kfaʂɛˈɲina] is a village in the administrative district of Gmina Ustrzyki Dolne, within Bieszczady County, Subcarpathian Voivodeship, in south-eastern Poland, near the border with Ukraine. It lies approximately 14 kilometres (9 mi) north of Ustrzyki Dolne and 72 km (45 mi) south-east of the regional capital Rzeszów.