| Named By: | Richard A. Thulborn in 1973 |
| Time Period: | Late Jurassic |
| Location: | Portugal - Alcobaca Formation |
| Size: | Uncertain due to lack of remains. However upon the basis of comparison of the lower jaws to other similarly sized noeornithischians, Phyllodon would have been somewhere between 1-2- meters long |
| Diet: | Herbivore |
| Fossil(s): | Lower jaws and teeth |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Neoornithishcia | |
Phyllodon (meaning "leaf tooth") was a genus of small ornithopod dinosaur from the Kimmeridgian-age Upper Jurassic Guimarota Formation of Leiria, Portugal. It may have been closely related to contemporaneous dinosaurs in North America.
This genus is known from teeth and possibly partial lower jaws. The name is also in use for a genus of modern moss, but this is not considered to be a problem because the two organisms are in two different kingdoms.