Siemuszowa [ɕɛmuˈʂɔva] is a village in the administrative district of Gmina Tyrawa Wołoska, within Sanok County, Subcarpathian Voivodeship, in south-eastern Poland. It lies approximately 5 kilometres (3 mi) north-west of Tyrawa Wołoska, 10 km (6 mi) north-east of Sanok, and 54 km (34 mi) south-east of the regional capital Rzeszów.