Lesko (or ''Lisko'' until 1926; ; , alias ''Olesco Lescovium''; ) is a town in south-eastern Poland with a population of 5,755 (02.06.2009) situated in the Bieszczady mountains. It is located in the heartland of the Doły (Pits), and its average altitude is above sea level, although there are some hills located within the confines of the city. Since 2002 it has been the capital of Lesko County.