Jarzynny Kierz [jaˈʐɨnnɨ ˈkʲɛʂ] is a village in the administrative district of Gmina Chorzele, within Przasnysz County, Masovian Voivodeship, in east-central Poland. It lies approximately 13 kilometres (8 mi) west of Chorzele, 32 km (20 mi) north of Przasnysz, and 120 km (75 mi) north of Warsaw.