Agustinia is a genus of sauropod from the Early Cretaceous Period of South America. Aside from the armor, very little is known about the anatomy of Agustinia, only fragmentary remains are known.. When compared to the same bones in related dinosaurs, this indicates that Agustinia may have been about 15 meters (50 feet) long. The name "Agustinia" honors the discoverer of the specimen, Agustin Martinelli. Agustinia is difficult to classify because of its fragmentary nature.