Loricosaurus (meaning "armour lizard") is a genus of sauropod represented by a single species.

It is a titanosaurian that lived near the end of the Late Cretaceous period, approximately 71 million years ago in the early Maastrichtian.

Found in the province of Neuquen, Argentina in the Allen Formation.

[2] In 1929 von Huene described Loricosaurus based on some armour osteoderms found in Argentina.

The type species, Loricosaurus scutatus, is now considered possibly a synonym of Neuquensaurus.