Kopcie [ˈkɔpt͡ɕɛ] is a village in the administrative district of Gmina Grębków, within Węgrów County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 kilometres (5 mi) east of Grębków, 17 km (11 mi) south of Węgrów, and 70 km (43 mi) east of Warsaw.