The narrow-billed woodcreeper (Lepidocolaptes angustirostris) is a species of bird in the Dendrocolaptinae subfamily. It is found in Argentina, Bolivia, Brazil, Paraguay, Suriname, and Uruguay. Its natural habitats are subtropical or tropical dry forests and dry savanna. As all members of its subfamily, it is a creeping bird which lives on small arthropods and vertebrates it catches under the bark of trees. The woodcreeper nests in cavities, both natural and bird-(e.g. woodpecker)made. It lays two to three white eggs, brooded jointly by the pair.