| Official Name: | Kosob |
| Native Name: | Кособ КӀособ |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Dagestan#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Republic of Dagestan |
| Subdivision Type2: | County |
| Subdivision Type3: | District |
| Subdivision Name3: | Tlyaratinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 42.2333°N 68°W[1] |
Kosob (Russian: Кособ; Avaric: КӀособ) is a rural locality (a selo) and the administrative center of Kosobsky Selsoviet, Tlyaratinsky District, Republic of Dagestan, Russia. Population: There are 5 streets.[2]
Kosob is located 22 km north of Tlyarata (the district's administrative centre) by road. Busutli is the nearest rural locality.[3]