Attapeu Province
Su' (autonym: ) is a Mon–Khmer language of the Bahnaric branch spoken in Attapeu Province, Laos. The 1995 Attapeu census recorded a population of only 124 speakers in Sanamsay District. Su' autonyms are identical with that of the Jru' (known to the Lao as "Laven"), but they consider themselves to be a separate ethnic group (Sidwell 2003:19). There could also possibly be speakers in Stung Treng Province, Cambodia.