Leśniki [lɛɕˈniki] is a village in the administrative district of Gmina Perlejewo, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 8 kilometres (5 mi) west of Perlejewo, 32 km (20 mi) north-west of Siemiatycze, and 76 km (47 mi) south-west of the regional capital Białystok.