| Official Name: | Marcelline, 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: | Adams |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.13 |
| Area Land Km2: | 0.13 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 0.05 |
| Area Land Sq Mi: | 0.05 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 75 |
| Population Density Km2: | 582.48 |
| Population Density Sq Mi: | 1500.00 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 620 |
| Coordinates: | 40.1181°N -91.3675°W |
| Area Code: | 217 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 412985 |
Marcelline is an unincorporated community in northwest Ursa Township, Adams County, Illinois, United States.
Marcelline is located on Illinois Route 96 four miles north of Ursa and five miles south of Lima. Bear Creek flows past approximately two miles to the north.[2]