| Chrzanów County | |
| Native Name: | Powiat chrzanowski |
| Settlement Type: | County |
| Total Type: | Total |
| Image Map1: | Powiat chrzanowski.svg |
| Map Caption1: | Division into gminas |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Lesser Poland |
| Area Total Km2: | 371.49 |
| Population Total: | 124937[1] |
| Population As Of: | 2019 |
| Population Density Km2: | auto |
| Population Urban: | 76880 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 40778 |
| Coor Pinpoint: | Chrzanów |
| Coordinates: | 50.1333°N 43°W |
| Seat: | Chrzanów |
| Parts Type: | Gminas |
| Parts: | Total 5 |
| P1: | Gmina Alwernia |
| P2: | Gmina Babice |
| P3: | Gmina Chrzanów |
| P4: | Gmina Libiąż |
| P5: | Gmina Trzebinia |
| Blank Name: | Car plates |
| Blank Info: | KCH |
| Website: | http://www.powiat-chrzanowski.pl |
Chrzanów County (pl|powiat chrzanowski) is a unit of territorial administration and local government (powiat) in Lesser Poland 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 and largest town is Chrzanów, which lies 40km (30miles) west of the regional capital Kraków. The county contains three other towns: Trzebinia, 80NaN0 north-east of Chrzanów, Libiąż, 80NaN0 south-west of Chrzanów, and Alwernia, 120NaN0 south-east of Chrzanów.
The county covers an area of 371.49km2. As of 2019 its total population is 124,937, out of which the population of Chrzanów is 36,717, that of Trzebinia is 19,778, that of Libiąż is 17,017, that of Alwernia is 3,368, and the rural population is 40,778.
Chrzanów County is bordered by Olkusz County to the north-east, Kraków County to the east, Wadowice County to the south, Oświęcim County to the south-west and the city of Jaworzno to the west.
The county is subdivided into five gminas (four urban-rural and one rural). These are listed in the following table, in descending order of population.
| Gmina | Type | Area (km2) | Population (2019) | Seat |
| Gmina Chrzanów | urban-rural | 79.3 | 46,929 | Chrzanów |
| Gmina Trzebinia | urban-rural | 105.2 | 33,931 | Trzebinia |
| Gmina Libiąż | urban-rural | 57.2 | 22,353 | Libiąż |
| Gmina Alwernia | urban-rural | 75.3 | 12,589 | Alwernia |
| Gmina Babice | rural | 54.5 | 9,135 | Babice |