__NOTOC__ Mahasu may refer to:
Shiva, a Hindu deity
Geography Mahasu (region) Mahasu district, the old name of Shimla district and Solan district in Himachal Pradesh, India Mahasu Peak, the highest peak in Kufri, India
Government Mahasu constituency seats in the Lok Sabha
Language Mahasu Pahari, a dialect of the Himachali language
Religion Mahasu Devta Temple, Uttarakhand, India
See also Mahadev (disambiguation)