| Official Name: | Deselm, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Deselm |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Kankakee |
| Subdivision Type3: | Township |
| Subdivision Name3: | Rockville |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 682 |
| Coordinates: | 41.2494°N -87.9744°W |
| Area Code: | 815 & 779 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 407148 |
Deselm is an unincorporated community in Kankakee County, in the U.S. state of Illinois.
A post office was established at Deselm in 1867, and remained in operation until 1902.[1]
John B. Deselm, the first postmaster, gave the community its name.[2]