| Named By: | von Huene in 1922 |
| Time Period: | Early - Late Cretaceous |
| Location: | Australia, Russia, USA and Columbia. Further material possibly from New Zealand and Western Europe as well |
| Size: | Around 7 meters long |
| Diet: | Piscivore |
| Fossil(s): | Many specimens including adults, juveniles |
| Classification: | | Chordata | Reptilia | Ichthyosauria | Ophthalmosauridae | |
Platypterygius is an ichthyosaur of the family Ophthalmosauridae. It is most closely related to the genera Caypullisaurus and Brachypterygius.