Khanui River (Mongolian: Хануй гол) is a river flowing down through the valleys of the Khangai Mountains in central Mongolia.

It starts in the Chuluut sum of Arkhangai aimag at the north slopes of the Khan-Öndör mountain.

[1] It passes next to the center of Erdenemandal sum, and ends in the Khutag-Öndör sum of Bulgan aimag where it discharges into the Selenge.

[2] It is 421 kilometres (262 mi) long, and has a drainage basin of 14,600 square kilometres (5,600 sq mi).

This article related to a river in Mongolia is a stub.