The Coastal Batholith of central Chile is a group of plutons in the Chilean Coast Range of Central Chile appearing contiguously from 33° S to 38° S.[1][2] At a latitude of 40° S an outlying group of plutons of the batholith appear in a more eastward position in the Andes.

During the Permian the zone of arc magmatism moved from the Coastal Batholith 350 km inland reaching San Rafael about 280 million years ago.

[2] The batholith is emplaced amidst metamorphic rocks belonging to a Paleozoic accretionary complex.

The northern parts are of the batholith are themselves intruded by Jurassic gabbros.

[1] Rocks of the batholith belong to the calc-alkaline magma series.