Radostów [raˈdɔstuf] is a village in the administrative district of Gmina Mircze, within Hrubieszów County, Lublin Voivodeship, in eastern Poland, close to the border with Ukraine. It lies approximately 8 kilometres (5 mi) south of Mircze, 26 km (16 mi) south of Hrubieszów, and 119 km (74 mi) south-east of the regional capital Lublin.