| Neroly Formation | |
| Type: | Geologic formation |
| Age: | Neogene Period |
| Period: | Neogene |
| Region: | Contra Costa County, California |
| Country: | United States |
| Underlies: | Pinole Tuff Formation |
The Neroly Formation is a geologic formation in the East Bay region of the San Francisco Bay Area in California.
Areas it is found include western Contra Costa County.
It preserves fossils dating back to the Neogene period.