Dobczyn [ˈdɔpt͡ʂɨn] is a village in the administrative district of Gmina Klembów, within Wołomin County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south-west of Klembów, 6 km (4 mi) north-east of Wołomin, and 28 km (17 mi) north-east of Warsaw.