| Official Name: | Fiatt, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Fiatt |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Fulton |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 676 |
| Coordinates: | 40.5603°N -90.1797°W |
| Postal Code Type: | ZIP Code |
| Postal Code: | 61433 |
| Area Code: | 309 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 408349 |
Fiatt is an unincorporated community in Fulton County, Illinois, United States. The community is on Illinois Routes 9 and 97 west of Canton.[1] Fiatt has a post office with ZIP Code 61433, which opened on July 17, 1843.[2] [3]