Zaręka [zaˈrɛŋka] is a village in the administrative district of Gmina Dołhobyczów, within Hrubieszów County, Lublin Voivodeship, in eastern Poland, close to the border with Ukraine. It lies approximately 5 kilometres (3 mi) north-east of Dołhobyczów, 26 km (16 mi) south-east of Hrubieszów, and 127 km (79 mi) south-east of the regional capital Lublin.