Bru, Eastern


A language of Laos

Alternate Names
Bru Tri

37,400 in Laos (2015 census). Based on ethnicity. Total users in all countries: 93,000.


Savannahkhet province: Sepone district; Khammouan province: Boulapha district.

Language Maps
Language Status

5* (Developing).


Leun (Kaleu, Leung), Tri (Chali, So Tri, So Trii). Partially intelligible with Western Bru [brv] of Thailand. The Mangkong dialect in Viet Nam and eastern Laos is a dialect of Eastern Bru, different linguistically from the Mangkong that are the same as So [sss] of Thailand. Mangkong is also an ethnic group.

Language Use

Also use Lao [lao]. Used as L2 by Arem [aem].

Language Development

Literacy rate in L1: 1%–5%. Literacy rate in L2: 15%–25%. Radio. Dictionary. Bible: 2014.


Lao script [Laoo], used in Laos. Latin script [Latn], used in Viet Nam. Thai script [Thai].

Other Comments

Traditional religion.

Also spoken in:

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