Tsʻün-Lao language
| Tsʻün-Lao | |
|---|---|
| Native to | Vietnam | 
| Region | Lai Châu Province | 
| Ethnicity | 14,900 (2009 census) | 
| Native speakers | (10,000 cited 1993) | 
| Kra–Dai
 
 | |
| Language codes | |
| ISO 639-3 | tsl | 
| Glottolog | tsun1242 | 
Tsʻün-Lao or Lào Bóc is a Tai language spoken in Lai Châu Province of the Northwest region of Vietnam.