| Medveditsa | |
| Source1 Location: | Tver Oblast |
| Mouth: | Volga |
| Mouth Coordinates: | 57.0744°N 37.5069°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 259km (161miles) |
| Source1 Elevation: | 219m (719feet) |
| Discharge1 Avg: | 41m3/s |
| Basin Size: | 5570km2 |
The Medveditsa is a river in Spirovsky, Likhoslavlsky, Rameshkovsky, Kashinsky, and Kimrsky districts of Tver Oblast, Russia, a left tributary of the Volga (joining the Volga at the Uglich Reservoir). The main tributaries are the Kushalka (left), the Ivitsa (right), the Drezna (left), the Rudomosh (left), and the Yakhroma (right). The length of the Medveditsa is 259km (161miles), and the area of its drainage basin is 5570km2.[1]
The source of the Medveditsa is southwest of the village of Gorma in Spirovsky District, at the southeastern outskirts of the Valdai Hills. The river flows southeast, and makes a stretch of the border between Spirovsky and Likhoslavlskydistricts. It crosses Likhoslavlsky District, enters Rameshkovsky District, and south of Rameshki turns east. The Medveditsa reaches the border with Kimrsky District and turns northeast, making the border between Rameshkovsky and Kimrsky Districts, and then east, making the border between Kashinsky and Kimrsky Districts. It enters Kashinsky District, returns to the border, and crosses into Kimrsky District. The mouth of the Medveditsa is downstream of the selo of Pleshkovo.
The drainage basin of the Medveditsa include the central parts of Spirovsky and Likhoslavlsky Districts, almost the whole area of Rameshkovsky District, the northwest of Kimrsky District, the west of Kashinsky District, as well as minor areas in Bezhetsky and Kesovogorsky Districts. The urban-type settlement of Rameshki lies in the drainage basin of the Medveditsa.
Medveditsa is popular for tourism and recreation.