Pieczyski [pjɛˈt͡ʂɨski] is a village in the administrative district of Gmina Perlejewo, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 2 kilometres (1 mi) east of Perlejewo, 25 km (16 mi) north-west of Siemiatycze, and 73 km (45 mi) south-west of the regional capital Białystok.