Kadzielnia [kaˈd͡ʑɛlɲa] is a village in the administrative district of Gmina Czernice Borowe, within Przasnysz County, Masovian Voivodeship, in east-central Poland. It lies approximately 7 kilometres (4 mi) north of Czernice Borowe, 15 km (9 mi) north-west of Przasnysz, and 100 km (62 mi) north of Warsaw.