| Gmina Kosów Lacki | |
| Other Name: | Kosów Lacki Commune |
| Settlement Type: | Gmina |
| Total Type: | Total |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Sokołów |
| Area Total Km2: | 200.17 |
| Population Total: | 6423 |
| Population As Of: | 2013[1] |
| Population Density Km2: | auto |
| Population Urban: | 2187 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 4236 |
| Coor Pinpoint: | Kosów Lacki |
| Coordinates: | 52.6°N 31°W |
| Seat: | Kosów Lacki |
| Website: | http://www.kosowlacki.pl/ |
Gmina Kosów Lacki is an urban-rural gmina (administrative district) in Sokołów County, Masovian Voivodeship, in east-central Poland. Its seat is the town of Kosów Lacki, which lies approximately 23km (14miles) north of Sokołów Podlaski and 890NaN0 north-east of Warsaw.
The gmina covers an area of 200.17km2, and as of 2006 its total population is 6,629 (out of which the population of Kosów Lacki amounts to 2,135, and the population of the rural part of the gmina is 4,494).
Apart from the town of Kosów Lacki, Gmina Kosów Lacki contains the villages and settlements of Albinów, Bojary, Buczyn Dworski, Buczyn Szlachecki, Chruszczewka Szlachecka, Chruszczewka Włościańska, Dębe, Dybów, Grzymały, Guty, Henrysin, Jakubiki, Kosów Ruski, Kosów-Hulidów, Krupy, Kutyski, Łomna, Nowa Maliszewa, Nowa Wieś Kosowska, Nowy Buczyn, Rytele Święckie, Sągole, Stara Maliszewa, Telaki, Tosie, Trzciniec Duży, Trzciniec Mały, Wólka Dolna, Wólka Okrąglik, Wyszomierz and Żochy.
Gmina Kosów Lacki is bordered by the gminas of Ceranów, Małkinia Górna, Miedzna, Sabnie, Sadowne, Sokołów Podlaski, Sterdyń and Stoczek.