For other places in Poland with the same name, see Leśna (disambiguation). For places elsewhere with similar spelling, see Lesna.

Leśna [] (Markllissa) is a town in Lubań County, Lower Silesian Voivodeship, in south-western Poland. It is the seat of the administrative district (gmina) called Gmina Leśna, close to the Czech border. Prior to 1945 it was in Germany.

It lies approximately south of Lubań, and west of the regional capital Wrocław.

As at 2006, the town has a population of 4,752.