The Kashinka (Russian: Ка́шинка, IPA: [ˈkaʂɨnkə]) is a river in Kesovogorsky and Kashinsky Districts of Tver Oblast, Russia, a left tributary of the Volga (joining the Volga at the Uglich Reservoir, near the town of Kalyazin).

[1] The town of Kashin and the urban-type settlement of Kesova Gora are located along the Kashinka.

The source of the Kashinka is in the swamps northwest of the village of Zadorye, at the border of Kesovogorsky and Bezhetsky districts.

It flows east, passes Kesova Gora, and in the village of Brylino turns south.

The Kashinka is one of the most popular swimming and fishing locations in Kashin during the summer.