Pniewo Wielkie [ˈpɲɛvɔ ˈvjɛlkʲɛ] is a village in the administrative district of Gmina Regimin, within Ciechanów County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) west of Regimin, 14 km (9 mi) north-west of Ciechanów, and 89 km (55 mi) north-west of Warsaw.