Geophis downsi, also known as the Savage's earth snake, is a snake of the colubrid family. It is endemic to Costa Rica and only known from its type locality, Las Cruces Biological Station in the Puntarenas Province. It is named after .
Only one specimen collected from under leaf litter in premontane rainforest is known. No further specimens were found during a study on leaf-litter fauna of the area in 2010âÂÂ2012. There are no known threats to this species that was found in a private reserve.