| Mikołów County | |
| Native Name: | Powiat mikołowski |
| Settlement Type: | County |
| Total Type: | Total |
| Map Caption1: | Location in Poland |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Silesian |
| Area Total Km2: | 231.53 |
| Population As Of: | 2019-06-30[1] |
| Population Total: | 98689 |
| Population Density Km2: | auto |
| Population Urban: | 84239 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 14450 |
| Coor Pinpoint: | Mikołów |
| Coordinates: | 50.1667°N 72°W |
| Seat: | Mikołów |
| Parts Type: | Gminas |
| Parts: | Total 5 (incl. 3 urban) |
| P1: | Łaziska Górne |
| P2: | Mikołów |
| P3: | Orzesze |
| P4: | Gmina Ornontowice |
| P5: | Gmina Wyry |
| Blank Name: | Car plates |
| Blank Info: | SMI |
| Website: | http://www.powiat.mikolow.pl/ |
Mikołów County (pl|powiat mikołowski) 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 and largest town is Mikołów, which lies 12km (07miles) south-west of the regional capital Katowice. The county also contains the towns of Łaziska Górne, lying 50NaN0 south-west of Mikołów, and Orzesze, 110NaN0 west of Mikołów.
The county covers an area of 231.53km2. As of 2019 its total population is 98,689, out of which the population of Mikołów is 40,898, that of Łaziska Górne is 22,298, that of Orzesze is 21,043, and the rural population is 14,450.
Mikołów County is bordered by the city of Ruda Śląska to the north, Katowice and Tychy to the east, Pszczyna County and Żory to the south, Rybnik County to the west and Gliwice County to the north-west.
The county is subdivided into five gminas (three urban and two rural). These are listed in the following table, in descending order of population.
| Gmina | Type | Area (km2) | Population (2019) | Seat |
| Mikołów | urban | 81.0 | 40,898 | |
| Łaziska Górne | urban | 20.2 | 22,298 | |
| Orzesze | urban | 82.9 | 21,043 | |
| Gmina Wyry | rural | 34.5 | 8,316 | Wyry |
| Gmina Ornontowice | rural | 15.1 | 6,134 | Ornontowice |