San Andres or San Andrés Formation may refer to:
- San Andres Formation, United States, a Permian geologic formations of the southwestern United States
- San Andrés Formation, Argentina, a Late Pliocene to Early Pleistocene geologic formation of Argentina
- San Andrés Formation, Colombia, a Miocene geologic formation of San Andrés Island, Colombia
- San Andrés Sandstone, a Paleogene geologic formation of Colombia
If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: