| Knox Dolomite | |
| Type: | Formation |
| Age: | Cambrian |
| Period: | Cambrian |
| Country: | United States |
| Underlies: | Stones River Group and Wells Creek Formation |
| Overlies: | Copper Ridge Dolomite, Eau Claire Formation, and Kerbal Formation |
| Extent: | Mississippi and Ohio |
The Knox Dolomite is a geologic formation in Mississippi and Ohio. It dates back to the Cambrian.