Głębocz Wielki (Polish pronunciation: [ˈɡwɛmbɔtʂ ˈfjɛlkʲi]) is a village in the administrative district of Gmina Szumowo, within Zambrów County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 6 kilometres (4 mi) north-west of Szumowo, 14 km (9 mi) west of Zambrów, and 77 km (48 mi) west of the regional capital Białystok.