Borek Strzeliński [ˈbɔrɛk stʂɛˈliɲski] (German: Großburg) is a village in the administrative district of Gmina Borów, within Strzelin County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 6 kilometres (4 mi) east of Borów, 12 kilometres (7 mi) north of Strzelin, and 28 kilometres (17 mi) south of the regional capital Wrocław. The village has a population of 960. After World War II Borek became part of Poland under the terms of the Potsdam Agreement.