Kodachadri is a mountain peak part of the Western Ghats situated in the Shimoga district of Karnataka. It is situated in the Hosanagara taluk of Shimoga district and is the highest peak in the district. It is situated at a distance of twenty kilometers from Kollur. Perched at an altitude of 1343 metres above mean sea level, Kodachadri is situated in the middle of the Mookambika National Park which is the habitat of several species of flora and fauna.

The major attraction in Kodachadri is Sarvajna Peetha which is located on the top of a hill. It is believed that it is here where Adi Shankaracharya meditated. The other attractions here are Arisinagudi Waterfalls and Agastya Teertha Waterfalls. The hill is an ideal spot for trekking.