Clelia plumbea is a species of rear-fanged snake in the family Dipsadidae. The species is endemic to South America, where it can be found in Brazil and Paraguay.
Clelia plumbea is widely distributed throughout Brazil and Paraguay, and can be found in the Amazon rainforest, Cerrado, and Atlantic Forest ecoregions. The type locality is from a small area north of Cabo Frio in the state of Rio de Janeiro.