Wrotnów [ˈvrɔtnuf] is a village in the administrative district of Gmina Miedzna, within Węgrów County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 kilometres (5 mi) north of Miedzna, 16 km (10 mi) north of Węgrów, and 81 km (50 mi) north-east of Warsaw.