to 1,000 (2003)
Sapuan (autonym: səpuar) is a Mon–Khmer language spoken in the single village of Ban Sapuan, located approximately 40 km north of Attapeu. Jacq and Sidwell (1999) provide a short grammar. Sidwell (2003) reports a population of just under 1,000. Chazée (1999:93) gives a lower estimate of 480.