| Official Name: | Billett, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Billett |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Lawrence |
| Subdivision Type3: | Township |
| Subdivision Name3: | Denison |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 420 |
| Coordinates: | 38.6644°N -87.6522°W |
| Area Code: | 618 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 404445 |
Billett is an unincorporated community in Lawrence County, Illinois, United States. Billett is 5miles south-southeast of Lawrenceville.
The elevation of Billett is 423 feet and falls under the Central Time Zone (UTC -6 hours).[1]