| Waynesville Formation | |
| Type: | Formation |
| Age: | Late Ordovician |
| Period: | Late Ordovician |
| Prilithology: | limestone |
| Otherlithology: | shale |
| Underlies: | Liberty Formation |
| Overlies: | Arnheim Formation |
The Waynesville Formation is a geologic formation in Ohio and Indiana. It preserves fossils from the Late Ordovician period.