| Kusova | |
| Native Name: | Кусова |
| Native Name Lang: | Russian language |
| Coordinates: | 54.7125°N 138.2153°W |
| Elevation M: | 633 |
| Pushpin Map: | Russia Khabarovsk Krai |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: | Russian Federation |
| Subdivision Type1: | Federal subject |
| Subdivision Name1: | Far Eastern Federal District |
| Subdivision Type2: | Krai |
| Subdivision Name2: | Khabarovsk Krai |
Kusova or Kusov Island (ru|остров Кусова; Ostrov Kusova) is a small island in the Shantar Islands in the Sea of Okhotsk. It lies southeast of Bolshoy Shantar Island.
The island lies towards the eastern end of the group. It is 4.2 km (2.6 mi) in length, with a maximum width of 2.6 km (1.6 mi). It is quite high, rising abruptly to a height of 633 m (2,076 ft).
Kusova Island is separated from Bolshoy Shantar Island to the northwest by a 14 km (8.7 mi) wide sound.
Kusova was frequented by American whaleships targeting bowhead whales between 1853 and 1867.[1] They simply called it Round Island. They would anchor off the island and send men ashore to obtain wood.[2]