Radziwie [raˈd͡ʑivjɛ] is a village in the administrative district of Gmina Ojrzeń, within Ciechanów County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) south-east of Ojrzeń, 16 km (10 mi) south of Ciechanów, and 64 km (40 mi) north-west of Warsaw.