| La Liga Formation | |
| Type: | Geologic formation |
| Age: | Late Jurassic–Neocomian |
| Prilithology: | Andesite |
| Region: | Coquimbo Region |
| Country: | Chile |
| Coordinates: | -29.7219°N -71.2358°W |
| Unitof: | Agua Salada Subvolcanic Complex |
La Liga Formation (Spanish; Castilian: Formación La Liga) is a geologic formation Late Jurassic and Early Cretaceous age cropping out in Coquimbo Region, Chile.[1] Rocks of the formation are andesites.[1] Locally the rocks of the formation present epidote alteration.[1] The iron ores of El Romeral mine are emplaced on La Liga Formation.[1]