Čemerno[2] (Serbian Cyrillic: Чемерно) is a mountain in western Serbia, near the town of Ivanjica.

Mountain plato extends in the northwest-southeast direction for some 12 kilometers and in it far southeast end it turns southwards.

The most accessible and well known spring is located at 700 m above sea level in Odmenje [sr] village - the famous Sava water, widely known for its healing properties.

Most of the mountain is covered with mixed forest, but in some parts of the ridge there are small or large grassland pastures with cattle huts.

A road leads through the western parts of the mountain, which then descends in the north to the villages of Tolišnica, in the upper part of the Borošnica basin, to the area of the village of Savovo (Ponore hamlet), and to Maglič, in the Ibar valley.