Platysuchus ("flat crocodile") is an extinct genus of teleosaurid crocodyliform from the Early Jurassic (Toarcian) of southern Germany and Luxembourg.
Platysuchus was originally described as a member of the genus Mystriosaurus, as M. multiscrobiculatus. However, Westphal (1961) found M. multiscrobiculatus generically distinct from Mystriosaurus and renamed it Platysuchus.
Platysuchus has been found in Toarcian age marine deposits in southern Germany and Luxembourg.