Sieniawa (Polish: [ɕɛˈɲava]) is a village in the administrative district of Gmina Rymanów, within Krosno County, Podkarpackie Province, in south-eastern Poland. It lies approximately 4 kilometres (2 mi) south-east of Rymanów, 20 km (12 mi) south-east of Krosno, and 54 km (34 mi) south of the regional capital Rzeszów.