Malużyn is a village in the administrative district of Gmina Glinojeck, within Ciechanów County, Masovian Voivodeship, in east-central Poland. It lies approximately 12 kilometres (7 mi) south-east of Glinojeck, 20 km (12 mi) south-west of Ciechanów, and 72 km (45 mi) north-west of Warsaw.