| Official Name: | Barnes, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Barnes |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | McLean |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 853 |
| Coordinates: | 40.5028°N -88.9017°W |
| Area Code: | 309 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 422432 |
Barnes is an unincorporated community in McLean County, Illinois.
Calvin Barnes founded the community in the 1880s, originally naming it "Barnesville." Barnes' home was the first structure built, followed by a grain elevator. Barnes had a post office open in 1884 that lasted until 1919.[1] Walter and Alta Weber opened a general store in 1921.[1] The small community was laid out along the Illinois Central, northeast of Bloomington-Normal. Hopeful planning resulted in four streets and over 20 commercial lots. However, the population never even grew to double digits. Only a few of the elevator structures remain.