Chojnowo [xɔi̯ˈnɔvɔ] is a village in the administrative district of Gmina Czernice Borowe, within Przasnysz County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) east of Czernice Borowe, 7 km (4 mi) west of Przasnysz, and 92 km (57 mi) north of Warsaw.