Tày Tac language
| Tày Tac | |
|---|---|
| Native to | Vietnam | 
| Kra–Dai
 
 | |
| Latin script, Tai Viet script | |
| Language codes | |
| ISO 639-3 | tyt | 
| Glottolog | tayt1241 | 
Tày Tấc (Tai Tâk) is a Southwestern Tai language spoken in Mường Tấc District (Muang Tâk), eastern Sơn La Province, Vietnam, where it is also referred to as White Tay.