| Official Name: | Rollo, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Rollo |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | DeKalb |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 748 |
| Coordinates: | 41.6731°N -88.8861°W |
| Area Code: | 815 & 779 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 422018 |
| Population Est: | 4 |
| Pop Est As Of: | 2023 |
| Pop Est Footnotes: | [1] |
Rollo is an unincorporated community in DeKalb County, Illinois, United States, located 5miles east-southeast of Paw Paw.
A post office called Rollo was established in 1886, and remained in operation until it was discontinued in 1922.[2] The community was named after the Rollo Books[3] by Jacob Abbott.