| Bielsko County | |
| Native Name: | Powiat bielski |
| Settlement Type: | County |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Silesian |
| Seat: | Bielsko-Biała |
| Parts Type: | Gminas |
| Parts: | Total 10 (incl. 1 urban) |
| P1: | Szczyrk |
| P2: | Gmina Bestwina |
| P3: | Gmina Buczkowice |
| P4: | Gmina Czechowice-Dziedzice |
| P5: | Gmina Jasienica |
| P6: | Gmina Jaworze |
| P7: | Gmina Kozy |
| P8: | Gmina Porąbka |
| P9: | Gmina Wilamowice |
| P10: | Gmina Wilkowice |
| Area Total Km2: | 457.2 |
| Total Type: | Total |
| Population As Of: | 2019-06-30[1] |
| Population Total: | 165374 |
| Population Density Km2: | auto |
| Population Urban: | 44760 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 120614 |
| Leader Title: | Starosta |
| Leader Name: | Andrzej Płonka |
| Blank Name: | Car plates |
| Blank Info: | SBI |
| Website: | http://www.powiat.bielsko.pl/ |
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). The county contains three towns: Czechowice-Dziedzice, 130NaN0 north-west of Bielsko-Biała, Szczyrk, 140NaN0 south of Bielsko-Biała, and Wilamowice, 120NaN0 north-east of Bielsko-Biała.
The county covers an area of 457.23km2. As of 2019 its total population is 165,374, out of which the population of Czechowice-Dziedzice is 35,926, that of Szczyrk is 5,734, that of Wilamowice is 3,100, and the rural population is 120,614.
Apart from the city of Bielsko-Biała, Bielsko County is also bordered by Pszczyna County and Oświęcim County to the north, Wadowice County to the east, Żywiec County to the south, and Cieszyn County to the west.
The county is subdivided into 10 gminas (one urban, two urban-rural and seven rural). These are listed in the following table, in descending order of population.
| Gmina | Type | Area (km2) | Population (2019) | Seat |
| Gmina Czechowice-Dziedzice | urban-rural | 66.3 | 45,451 | Czechowice-Dziedzice |
| Gmina Jasienica | rural | 91.7 | 24,264 | Jasienica |
| Gmina Wilamowice | urban-rural | 56.7 | 17,613 | Wilamowice |
| Gmina Porąbka | rural | 64.6 | 15,582 | Porąbka |
| Gmina Wilkowice | rural | 33.9 | 13,409 | Wilkowice |
| Gmina Kozy | rural | 26.9 | 12,979 | Kozy |
| Gmina Bestwina | rural | 37.6 | 11,816 | Bestwina |
| Gmina Buczkowice | rural | 19.3 | 11,196 | Buczkowice |
| Gmina Jaworze | rural | 21.3 | 7,330 | Jaworze |
| Szczyrk | urban | 39.1 | 5,734 | |