| Pajęczno County | |
| Native Name: | Powiat pajęczański |
| Settlement Type: | County |
| Total Type: | Total |
| Image Map1: | Powiat pajęczański.png |
| Map Caption1: | Division into gminas |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Łódź |
| Area Total Km2: | 804.14 |
| Population Total: | 53395 |
| Population As Of: | 2006 |
| Population Density Km2: | auto |
| Population Urban: | 12950 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 40445 |
| Coor Pinpoint: | Pajęczno |
| Coordinates: | 51.15°N 19°W |
| Seat: | Pajęczno |
| Parts Type: | Gminas |
| Parts: | Total 8 |
| P1: | Gmina Działoszyn |
| P2: | Gmina Kiełczygłów |
| P3: | Gmina Nowa Brzeźnica |
| P4: | Gmina Pajęczno |
| P5: | Gmina Rząśnia |
| P6: | Gmina Siemkowice |
| P7: | Gmina Strzelce Wielkie |
| P8: | Gmina Sulmierzyce |
| Blank Name: | Car plates |
| Blank Info: | EPJ |
| Website: | http://www.powiatpajeczno.pl/ |
Pajęczno County (Polish: powiat pajęczański) is a unit of territorial administration and local government (powiat) in Łódź Voivodeship, central 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 Pajęczno, which lies 78km (48miles) south-west of the regional capital Łódź. The only other town in the county is Działoszyn, lying 100NaN0 west of Pajęczno.
The county covers an area of 804.14km2. As of 2006 its total population is 53,395, out of which the population of Pajęczno is 6,674, that of Działoszyn is 6,276, and the rural population is 40,445.
Pajęczno County is bordered by Bełchatów County to the north-east, Radomsko County to the east, Częstochowa County and Kłobuck County to the south, and Wieluń County to the west.
The county is subdivided into eight gminas (two urban-rural and six rural). These are listed in the following table, in descending order of population.
| Gmina | Type | Area (km2) | Population (2006) | Seat |
| Gmina Działoszyn | urban-rural | 120.6 | 12,908 | Działoszyn |
| Gmina Pajęczno | urban-rural | 113.4 | 11,655 | Pajęczno |
| Gmina Nowa Brzeźnica | rural | 136.0 | 5,031 | Nowa Brzeźnica |
| Gmina Siemkowice | rural | 97.4 | 5,016 | Siemkowice |
| Gmina Strzelce Wielkie | rural | 77.7 | 4,883 | Strzelce Wielkie |
| Gmina Rząśnia | rural | 86.4 | 4,802 | Rząśnia |
| Gmina Sulmierzyce | rural | 82.7 | 4,757 | Sulmierzyce |
| Gmina Kiełczygłów | rural | 90.0 | 4,343 | Kiełczygłów |