The Monte Iberia eleuth (Eleutherodactylus iberia), also known as the Monte Iberia dwarf frog, is a species of eleutherodactylid frog. It is critically endangered and endemic to rainforest in a small part of easternmost Cuba. It is the smallest frog in the Northern Hemisphere and the third smallest frog in the world, at about 10 mm (0.4 in) in snout–to–vent length (only a few members of the Southern Hemisphere genera Brachycephalus, Mini, Paedophryne and Stumpffia are smaller).