Thulung Rai is a Tibeto-Burman language spoken in eastern Nepal, in the Solu khumbu district. It is subgrouped with the Kiranti languages, all of which are spoken roughly in the same geographical area, based on its complex verbal morphology, marking both subject and object agreement with verbal suffixes. Thulung is endangered (an estimated 1,000 speakers in the year 2000), with no fluent speakers younger than twenty, and has been subject to the inroads of Nepali, the Indo-Aryan national language of Nepal.