The Nerl (Russian: Нерль) is a river in Pereslavsky District of Yaroslavl and Kalyazinsky District of Tver Oblast in Russia, a right tributary of the Volga (at the Uglich Reservoir).

The area of its drainage basin is 3,270 square kilometres (1,260 sq mi).

Its main tributary is the 91 km (57 mi) long Kubr (left), which rises in the Lyakhovo marshes.

Downstream of the village of Andrianovo a stretch of the Nerl makes the border between Yaroslavl and Tver Oblasts.

The town of Pereslavl-Zalessky and the urban-type settlement of Kubrinsk lie in the drainage basin of the Nerl.