| Llullaillaco National Park | |
|---|---|
 Llullaillaco | |
 | |
| Location | Antofagasta Region, Chile |
| Nearest city | Antofagasta |
| Coordinates | 24°43′0″S 68°37′0″W / 24.71667°S 68.61667°W |
| Area | 2,687 km2 |
| Governing body | Corporación Nacional Forestal |
Llullaillaco National Park is a national park of Chile, 275 km southeast of Antofagasta in the Andes. It lies between the eastern slopes of the Cordillera Domeyko and the international border with Argentina. In the park there are several important mountains that culminate at the summit of Llullaillaco volcano. The park also is characterized by extensive semi-desert plains interspersed by Quebradas. A part of the Inca road system is found in Río Frío area.