| Type: | suburb |
| Cossack | |
| City: | Katherine |
| State: | nt |
| Coordinates: | -14.4465°N 132.1764°W |
| Local Map: | yes |
| Zoom: | 10 |
| Pop: | 1293 |
| Postcode: | 0850 |
| Timezone: | ACST |
| Utc: | +9:30 |
| Dist1: | 13.8 |
| Location1: | Katherine |
| Lga: | Katherine Town Council |
| Stategov: | Katherine |
| Fedgov: | Lingiari |
Cossack is a suburb of the town of Katherine, Northern Territory, Australia. It is within the Katherine Town Council local government area. The area was officially defined as a suburb in April 2007, adopting the name from white émigré farmers who settled in the area.[1]
The locality consists mostly of rural land holdings mixed with some smaller farms and residences, however there is also a small industrial area and power station close to the Stuart Highway.
As of the 2021 Australian census, 1,293 people resided in Cossack, up from 1,223 in the . The median age of persons in Cossack was 39 years. There were more males than females, with 51.1% of the population male and 48.9% female. The average household size was 2.8 people per household.