| Official Name: | Yonza |
| Settlement Type: | Canton |
| Pushpin Map: | Bolivia |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of Coqueza within Bolivia |
| Subdivision Type: | Country |
| Subdivision Name1: | Potosí Department |
| Subdivision Type2: | Province |
| Subdivision Name2: | Daniel Campos Province |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Tahua Municipality |
| Seat Type: | Seat |
| Seat: | Yonza |
| Unit Pref: | Imperial |
| Population As Of: | 2001 |
| Population Total: | 363 |
| Timezone: | BST |
| Utc Offset: | -4 |
| Coordinates: | -20.6333°N -70°W |
Yonza is one of the cantons of the Tahua Municipality, the second municipal section of the Daniel Campos Province in the Potosí Department of Bolivia. During the census of 2001 it had 363 inhabitants.[1] Its seat is Yonza. The canton is situated on a peninsula that juts into Salar de Uyuni on its southern end.