Zasady [zaˈsadɨ] is a village in the administrative district of Gmina Gródek, within Białystok County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately 20 kilometres (12 mi) north-west of Gródek and 22 km (14 mi) north-east of the regional capital Białystok.