| Official Name: | Bader, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Schuyler |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 617 |
| Coordinates: | 40.1731°N -90.3686°W |
| Postal Code: | 62624 |
| Area Code: | 217 309 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 403793 |
Bader is an unincorporated community in Schuyler County, Illinois, United States. Bader is 3miles north of Browning. The community was founded in 1870 under the name Osceola; it was later renamed after William Bader, who ran a grain elevator in the community. A post office opened in the community on October 8, 1872, under the name Baders; it was shortened to Bader on December 23, 1907.[1]