Ciemnoszyje [t͡ɕɛmnɔˈʂɨjɛ] is a village in the administrative district of Gmina Grajewo, within Grajewo County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 14 kilometres (9 mi) south-east of Grajewo and 63 km (39 mi) north-west of the regional capital Białystok.