Radomyśl nad Sanem [raˈdɔmɨɕl ˌnat ˈsanɛm] is a village in Stalowa Wola County, Subcarpathian Voivodeship, in south-eastern Poland. It is the seat of the gmina (administrative district) called Gmina Radomyśl nad Sanem. It lies on the San river in Lesser Poland, approximately 14 kilometres (9 mi) north-west of Stalowa Wola and 73 km (45 mi) north of the regional capital Rzeszów.