Sô language

Mangkong
Spoken in Laos, Thailand
Ethnicity Bru
Native speakers 170,000  (1993–2006)
Language family
Language codes
ISO 639-3 sss

is a Katuic language (Mon-Khmer) of Laos and Thailand.

"Sô" is the name used in Thailand. In Laos it is known as "Mangkong" or "Bru".