Szostakowo [ʂɔstaˈkɔvɔ] is a village in the administrative district of Gmina Czyże, within Hajnówka County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 5 kilometres (3 mi) east of Czyże, 7 km (4 mi) north-west of Hajnówka, and 45 km (28 mi) south-east of the regional capital Białystok.