Trzcianiec [ˈtʂt͡ɕaɲɛt͡s] is a village in the administrative district of Gmina Ustrzyki Dolne, within Bieszczady County, Subcarpathian Voivodeship, in south-eastern Poland. It lies approximately 19 kilometres (12 mi) north-west of Ustrzyki Dolne and 62 km (39 mi) south-east of the regional capital Rzeszów.