Perlejewo [pɛrlɛˈjɛvɔ] is a village in Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland. It is the seat of the gmina (administrative district) called Gmina Perlejewo. It lies approximately 26 kilometres (16 mi) north-west of Siemiatycze and 74 km (46 mi) south-west of the regional capital Białystok.