Bielsk
Bielsk may refer to:
- Bielsk, Kuyavian-Pomeranian Voivodeship (north-central Poland)
- Bielsk, Masovian Voivodeship (east-central Poland)
- Bielsk Podlaski in Podlaskie Voivodeship (north-east Poland)
- Bielsk, Pomeranian Voivodeship (north Poland)