Gecarcinus nobili, also known as the Red land crab, Ghostly moon crab, or Colombian land crab, is a species of land crab closely related to the halloween moon crab (G. quadratus). It was described in 2014. It is from the Neotropical Pacific coast of northwestern South America.^[1]

G. nobilii is found along the South American Pacific coast, from Colombia to Peru. It inhabits the mangrove, tropical rainforest and other habitats that lines the coast.^{[citation needed]}

It behaves almost indistinguishably from its relative G. quadratus.^{[citation needed]}