Santali (Ol Chiki: ), also known as Santhali, is the most widely spoken language of the Munda subfamily of the Austroasiatic languages, related to Ho and Mundari, spoken mainly in the Indian states of Assam, Bihar, Jharkhand, Mizoram, Odisha, Tripura and West Bengal. It is a recognised regional language of India per the Eighth Schedule of the Indian Constitution. It is spoken by around 7.6 million people in India, Bangladesh, Bhutan and Nepal, making it the third most-spoken Austroasiatic language after Vietnamese and Khmer.