| Official Name: | Belle Union, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Belle Union |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Putnam |
| Subdivision Type3: | Township |
| Subdivision Name3: | Jefferson |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 39.5731°N -86.7061°W |
| Elevation Ft: | 791 |
| Postal Code Type: | ZIP code |
| Postal Code: | 46121 |
| Area Code: | 765 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 430776 |
Belle Union is an unincorporated community in Jefferson Township, Putnam County, in the U.S. state of Indiana.
A post office was established at Belle Union in 1870, and remained in operation until it was discontinued in 1906.[1] The name may be an amalgamation of the Bell family of settlers and the nearby Union Valley Baptist Church.[2]