| Official Name: | Pleasant Plain, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Pleasant Plain |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Huntington |
| Subdivision Type3: | Township |
| Subdivision Name3: | Jefferson |
| Coordinates: | 40.6967°N -85.5453°W |
| Elevation Ft: | 837 |
| Postal Code Type: | ZIP code |
| Postal Code: | 46792 |
| Blank Name: | FIPS code |
| Blank Info: | 18-60570[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 449712 |
Pleasant Plain is an unincorporated community in Jefferson Township, Huntington County, Indiana.
Pleasant Plain was founded in 1875.[2] It was likely named due to its scenic setting.[3] A post office was established at Pleasant Plain in 1875, and remained in operation until it was discontinued in 1905.[4]