| Yangsu Tegin 鞅素特勤 | |
| Tegin of Bukhara | |
| Reign: | ? - ? |
| Predecessor: | Apa Qaghan |
| Successor: | Niri Qaghan |
| Issue: | Niri Qaghan Poshi Dele Bagha Shad |
| Royal House: | Ashina |
| Father: | Muqan Qaghan |
| Death Date: | 589? |
| Religion: | Tengrism |
Yangsu Tegin was a Gökturk prince. According to Lev Gumilyov, he was a son of Tardu,[1] however Takeshi Osawa suggested that he was a son of Muqan Qaghan and father of Niri Qaghan.[2]