The Pyu language (, ; also Tircul language) is an extinct Sino-Tibetan language that was mainly spoken in present-day central Burma (Myanmar) in the first millennium CE. It was the vernacular of the Pyu city-states, which thrived between the second century BCE and the 9th century CE. Its usage declined starting in the late 9th century when the Bamar people of the Kingdom of Nanzhao began to overtake the Pyu city-states. The language was still in use, at least in royal inscriptions of the Pagan Kingdom if not in popular vernacular, until the late 12th century. It became extinct in the 13th century, completing the rise of the Burmese language, the language of the Pagan Kingdom, in Upper Burma, the former Pyu realm.