| Official Name: | Mongo, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Mongo |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | LaGrange |
| Subdivision Type3: | Township |
| Subdivision Name3: | Springfield |
| Population As Of: | 2010 |
| Population Total: | 105 |
| Coordinates: | 41.6842°N -85.2783°W |
| Elevation Ft: | 906 |
| Postal Code Type: | ZIP code |
| Postal Code: | 46771 |
| Blank Name: | FIPS code |
| Blank Info: | 18-50094[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2830436 |
Mongo is an unincorporated community in Springfield Township, LaGrange County, Indiana. The population in 2010 was 105.[2]
Mongo was originally called Mongoquinong, and under the latter name was laid out in 1840.[3] Mongoquinong was later shortened to Mongo. Although An Illustrated Historical Atlas of LaGrange County, Indiana (1874) translates the native name as 'Big Squaw Village', it is thought to be a corruption of the Miami-Illinois maankwahkionka, meaning 'in the Loon Land'.[4] [5]
The John O'Ferrell Store was listed in the National Register of Historic Places in 1975.
Mongo is the site of "The Olde Store" (aka "John O'Ferrell Store" or the "Mongo Trading Post"), on the National Register of Historic Places.