| Nevado Anallajsi | |
| Elevation M: | 5750 |
| Location: | Bolivia |
| Range: | Andes |
| Map: | Bolivia |
| Label Position: | right |
| Map Size: | 200 |
| Coordinates: | -17.9167°N -123°W |
| Type: | Stratovolcano |
| Last Eruption: | Unknown |
Nevado Anallajsi is a stratovolcano in Bolivia. The date of its last eruption is unknown, but its youngest lava flows appear to have erupted from a vent on the north flank of the mountain. The main composition of the volcano is andesitic and dacitic. It overlies a plateau which is composed of ignimbrite. The volcano covers an area of and is 10.2 mya old based on its erosion state,[1] while other estimates indicate an age of 2.6 mya.[2]