贝尼河（西班牙语：Río Beni）是玻利维亚北部的河流，从发源地拉巴斯流经潘帕平原，与Tuichi River汇流后流经热带雨林。

贝尼河在玻利维亚和巴西的边境流入马莫雷河。

The Beni River (Spanish:Río Beni) is a river in the north of Bolivia.

It rises north of La Paz and flows northeast. It is the most important tributary of the Madre de Dios River. Two of Beni's tributaries are the Madidi River and the Tuichi River in the Madidi National Park and Madidi National Park respectively. Tuichi River joins the Beni River upstream from the town Rurrenabaque. South of Rurrenabaque, the Beni River runs through the Amazon rainforest. About 30 km (19 mi) before joining the Mamoré River at the Bolivia-Brazil border, the rapids of Cachuela Esperanza interrupt the upstream navigability of the river.