Buczyn Dworski (Polish pronunciation: [ˈbutʂɨn ˈdvɔrskʲi]) is a village in the administrative district of Gmina Kosów Lacki, within Sokołów County, Masovian Voivodeship, in east-central Poland. It lies approximately 9 kilometres (6 mi) south-east of Kosów Lacki, 15 km (9 mi) north of Sokołów Podlaski, and 89 km (55 mi) north-east of Warsaw.