| Sestra | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 138km (86miles) |
| Mouth: | Dubna |
| Mouth Coordinates: | 56.707°N 37.2284°W |
| Progression: | Dubna→ |
| Basin Size: | 2680km2 |
The Sestra (Russian: Сестра́) is a river in Moscow Oblast, Russia. It is a left tributary of the Dubna (Volga basin). Its source is the Senezh Lake. The length of the river is 138km (86miles). The area of its basin is 2680km2.[1] The river freezes in November to early January and stays under the ice until late March or April. Its main tributary is the Yakhroma. The town of Klin is located on the Sestra.