| Jatun Q'asa | |
| Elevation M: | 4398 |
| Location: | Bolivia, Potosí Department |
| Range: | Andes |
| Map: | Bolivia |
| Label Position: | right |
| Map Size: | 200 |
| Coordinates: | -19.4769°N -65.8628°W |
Jatun Q'asa (Quechua jatun, hatun big, q'asa mountain pass,"big mountain pass", also spelled Jatun Khasa) is a 4398adj=midNaNadj=mid mountain in the Bolivian Andes. It is located in the Potosí Department, Tomás Frías Province, Yocalla Municipality. It lies east of the village of Puka Wasi (Puca Huasi).