Grabnik [ˈɡrabnik] is a village in the administrative district of Gmina Adamów, within Zamość County, Lublin Voivodeship, in eastern Poland. It lies approximately 7 kilometres (4 mi) south-east of Adamów, 17 km (11 mi) south of Zamość, and 89 km (55 mi) south-east of the regional capital Lublin.