Patagopelta is an extinct genus of ankylosaurian dinosaur from the Late Cretaceous Allen Formation of Argentina. The genus contains a single species, P. cristata, known from several partial skeletons, isolated bones, and osteoderms. While originally described as a member of the family Nodosauridae, later discoveries provided support for parankylosaurian affinities. Patagopelta is a small armored dinosaur, comparable in size to the 'dwarf' nodosaurid Struthiosaurus, at about 2 m (6.6 ft) long. It is larger, more robust, and more heavily armored than other paranklyosaurs such as Stegouros.