| Ostrowiec County | |
| Native Name: | Powiat ostrowiecki |
| Settlement Type: | County |
| Total Type: | Total |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Świętokrzyskie |
| Area Total Km2: | 616.33 |
| Population Total: | 109,512 |
| Population As Of: | 2019 |
| Population Density Km2: | auto |
| Population Urban: | 74620 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 34892 |
| Coor Pinpoint: | Ostrowiec Świętokrzyski |
| Coordinates: | 50.9333°N 45°W |
| Seat: | Ostrowiec Świętokrzyski |
| Parts Type: | Gminas |
| Parts: | Total 6 (incl. 1 urban) |
| P1: | Ostrowiec Świętokrzyski |
| P2: | Gmina Bałtów |
| P3: | Gmina Bodzechów |
| P4: | Gmina Ćmielów |
| P5: | Gmina Kunów |
| P6: | Gmina Waśniów |
| Blank Name: | Car plates |
| Blank Info: | TOS |
| Website: | http://www.ostrowiec.starostwo.gov.pl/ |
Ostrowiec County (Polish: powiat ostrowiecki) is a unit of territorial administration and local government (powiat) in Świętokrzyskie Voivodeship, south-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 Ostrowiec Świętokrzyski, which lies 56km (35miles) east of the regional capital Kielce. The county also contains the towns of Ćmielów, lying 100NaN0 south-east of Ostrowiec Świętokrzyski, and Kunów, 90NaN0 west of Ostrowiec Świętokrzyski.
The county covers an area of 616.33km2. As of 2019 its total population is 109,512, out of which the population of Ostrowiec Świętokrzyski is 68,641, that of Ćmielów is 3,012, that of Kunów is 2,967, and the rural population is 34,892.[1]
Ostrowiec County is bordered by Lipsko County to the north, Opatów County to the south, and Kielce County and Starachowice County to the west.
The county is subdivided into six gminas (one urban, two urban-rural and three rural). These are listed in the following table, in descending order of population.
| Gmina | Type | Area (km2) | Population (2019) | Seat |
| Ostrowiec Świętokrzyski | urban | 46.4 | 68,641 | |
| Gmina Bodzechów | rural | 122.3 | 13,418 | Ostrowiec Świętokrzyski * |
| Gmina Kunów | urban-rural | 113.7 | 9,817 | Kunów |
| Gmina Ćmielów | urban-rural | 117.7 | 7,338 | Ćmielów |
| Gmina Waśniów | rural | 111.3 | 6,847 | Waśniów |
| Gmina Bałtów | rural | 104.9 | 3,451 | Bałtów |
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