Lesko [ˈlɛskɔ] (or Lisko until 1926; Ukrainian: Лісько, romanized: Lisko; Latin: Lescow, alias Olesco Lescovium; Yiddish: לינסק, romanized: Linsk) is a town in south-eastern Poland with a population of 5,755 (02.06.2009).

In the seventeenth century, the town was quite an important centre of trade and craftsmanship, with approximately 1,500 inhabitants.

[2] In September 1939, following the territorial division of Poland by the Ribbentrop-Molotov Pact, the border between German and Soviet occupation zones ran along the river San in the area of Lesko.

In the immediate postwar years the area was the scene of the fighting between Polish military forces and the Ukrainian Insurgent Army.

The city and its economy only started to recover in the 1950s, after a government program encouraging people from other areas of Poland to settle there.