| Tiff | |
| Settlement Type: | Unincorporated community |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Missouri |
| Pushpin Map: | Missouri#USA |
| Coordinates: | 38.0192°N -90.6528°W |
| Elevation Ft: | 659 |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
| Postal Code: | 63674 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 727649 |
Tiff is an unincorporated community in eastern Washington County, Missouri, United States. It is located approximately eight miles northeast of Potosi. The community was named for the barite ore found here, also known as "tiff".[1] The community was founded as a company town in the early 1900s by John Cambel to house miners for his South East Missouri Barytes Company.[2] A post office called Tiff has been in operation since 1905.[3]