Krosno 'krosno (in full The Royal Free City of Krosno, Królewskie Wolne Miasto Krosno) is a historical town and county in the Subcarpathian Voivodeship, in southeastern Poland. The estimated population of the town is 47,140 inhabitants as of 2014.
The functional urban area of Krosno has a population of 115,000 inhabitants.
Krosno is a medieval fortified town, a former Royal Free Town and centre of cloth, linen, canvas, baize and Hungarian wine trade. It is also notable for its glassmaking traditions, which became known as the Krosno Glassware. Until recently it was a provincial capital.
Krosno is the site of the first oil well (or "mine") in the world.
The River Wisłok passes by Krosno. Slovakia is about south, and Ukraine is about east of the city. It is located in the heartland of the Doły (Pits), and its average altitude is above sea level, but some hills are located within the confines of the city.
Neighbouring municipalities are Korczyna, Krościenko Wyżne, Miejsce Piastowe, Chorkówka, Jedlicze, and Wojaszówka.
Situated in the Subcarpathian Voivodeship (since 1999), previously it was the capital of Krosno Voivodeship (1975–1998). It is the capital of Krosno County.
Krosno covers an area of , and has seven separate town quarters and 5 housing estates. The historical centre is situated on a hill between the fork of the Lubatówka and Wisłok Rivers (tributary of the San River).
The first mention of the town, which names Krosno as one of 34 estates in Lesser Poland granted to the Bishopric of Lubusz, appears in a document signed by High Duke of Poland Leszek II the Black in 1282. However, the oldest traces of settlement in the fork of the Wisłok and Lubatówka Rivers, found during archaeological research, date back to the 10th and 11th centuries. The area was inhabited by the old Polish tribe of Lendians.
Today it is difficult to clearly determine the etymology of the place-name of Krosno. Scholars give several versions explaining the origin of the name.