| Tsʻün-Lao | |
| States: | Vietnam |
| Region: | Lai Châu Province |
| Ethnicity: | (2009 census) |
| Speakers: | 10,000 |
| Date: | 1993 |
| Ref: | e18 |
| Familycolor: | Tai-Kadai |
| Fam2: | Tai |
| Fam3: | Central Tai? |
| Iso3: | tsl |
| Glotto: | tsun1242 |
| Glottorefname: | Ts'un-Lao |
Tsʻün-Lao or Lào Bóc is a Tai language spoken in Lai Châu Province of the Northwest region of Vietnam.