Smolnik [ˈsmɔlɲik] is a village in the administrative district of Gmina Leśna, within Lubań County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 2 kilometres (1 mi) north-west of Leśna, 10 km (6 mi) south of Lubań, and 125 km (78 mi) west of the regional capital Wrocław.