Adelophryne pachydactyla is a species of frog in the Eleutherodactylidae family. It is endemic to the coastal area of south-central Bahia state, Brazil.Little is known of this species; it has been collected on a cacao farm under cacao trees, bananas and some larger shade trees, on the ground in the leaf-litter near a small creek. At another site they were collected in terrestrial bromeliads in a forest.