Bielsko County (Polish: powiat bielski) is a unit of territorial administration and local government (powiat) in Silesian Voivodeship, southern Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat is the city of Bielsko-Biała, although the city is not part of the county (it constitutes a separate city county).