Old Mon

The Mon language (Mon: ဘာသာ မန်; Burmese: မွန်ဘာသာ) is an Austroasiatic language spoken by the Mon people, who live in Myanmar and Thailand. Mon, like the related Khmer language but unlike most languages in mainland Southeast Asia, is not tonal. Mon is spoken by more than a million people today. In recent years, usage of Mon has declined rapidly, especially among the younger generation. Many ethnic Mon are monolingual in Burmese. In Myanmar, the majority of speakers live in Mon State, followed by Tanintharyi Region and Kayin State.

The Mon script is ultimately derived from the Indic Brahmi script.

Mon is an important language in Burmese history. Up until the 12th century, it was the lingua franca of the Irrawaddy valley—not only in the Mon kingdoms of the lower Irrawaddy but also of the upriver Pagan Kingdom of the Bamar people. Mon, especially written Mon, continued to be the primary language even after the fall of the Mon kingdom of Thaton to Pagan in 1057. Pagan king Kyansittha (r. 1084–1113) admired Mon culture and the Mon language was patronized. The Mon script was adopted for Burmese during his reign.

Kyanzittha left many inscriptions in Mon. During this period, the Myazedi inscription, which contains identical inscriptions of a story in Pali, Pyu, Mon and Burmese on the four sides, was carved.