| Official Name: | Kasyanka |
| Native Name: | Касьянка |
| Settlement Type: | Village |
| Pushpin Map: | Russia Vologda Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Vologda Oblast |
| Subdivision Name3: | Velikoustyugsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 60.3167°N 64°W[1] |
Kasyanka (Russian: Касьянка) is a rural locality (a village) in Verkhneshardenskoye Rural Settlement, Velikoustyugsky District, Vologda Oblast, Russia. The population was 3 as of 2002.[2]
Kasyanka is located 57 km south of Veliky Ustyug (the district's administrative centre) by road. Gora is the nearest rural locality.[3]