Leśniki [lɛɕˈniki] (German Leschnicken) is a village in the administrative district of Gmina Świętajno, within Olecko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 13 kilometres (8 mi) south-west of Olecko and 126 km (78 mi) east of the regional capital Olsztyn.