Chuluut River (; ) is a river flowing through the Khangai Mountains in central Mongolia. It is a tributary of the Ider River; the width at the mouth into the Ider is 80 m, with a maximum depth of 3 m. It is 415 km long. It is usually frozen from November to April.
In 2014, around 0.5 million m<sup>3</sup> of water was withdrawn from the river for domestic, livestock, cropland and industrial use.