Bielsko is a former town in southern Poland, now part of Bielsko-Biała.
Bielsko may also refer to: Bielsko County (powiat bielski) Bielsko, Lublin Voivodeship (east Poland) Bielsko, Międzychód County in Greater Poland Voivodeship (west-central Poland) Bielsko, Słupca County in Greater Poland Voivodeship (west-central Poland) Bielsko, Pomeranian Voivodeship (north Poland)