Chrostowo [xrɔsˈtɔvɔ] is a village in the administrative district of Gmina Jedwabne, within Łomża County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 10 kilometres (6 mi) north-east of Jedwabne, 30 km (19 mi) north-east of Łomża, and 58 km (36 mi) north-west of the regional capital Białystok.