Beltes River () is a river in the Khövsgöl aimag of Mongolia.
It starts in the Renchinlkhümbe sum in the south-western range of the Khoridol Saridag mountains, about 40 km north-west of Khatgal. It ends by entering the Delger mörön in Bayanzürkh sum, shortly after passing the sum center Altraga.