| Named By: | Susannah C. R. Maidment, David B. Norman, Paul M. Barret & Paul Upchurch in 2008 |
| Time Period: | Middle Jurassic |
| Location: | England - Oxford Clay Formation & France - Marnes a Belemnopsis latesulcatus Formation |
| Size: | Unavailable |
| Diet: | Herbivore |
| Fossil(s): | Partial post cranial remains |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Thyreophora | Stegosauria | Stegosauridae | |
| Also known as: | | Stegosaurus priscus | |
Loricatosaurus (meaning "armored lizard") is a genus of stegosaurid dinosaur from Callovian-age (Middle Jurassic) rocks of England and France. It is known from remains previously assigned to Lexovisaurus; however, upon review of the material, Susannah Maidment and colleagues determined that Lexovisaurus was based upon nondiagnostic remains, and coined a new genus for the other specimens. The species name, priscus, comes from the oldest name associated with diagnostic specimens, Baron Franz Nopcsa's "Stegosaurus" priscus of 1911. It is known from two partial skeletons. Contrary to previous reports (as Lexovisaurus), a shoulder spine is not present in the known material; the possible spine is more likely from the tail.