| Official Name: | Plum Tree, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Plum Tree |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Huntington |
| Subdivision Type3: | Township |
| Subdivision Name3: | Rock Creek |
| Coordinates: | 40.7422°N -85.3925°W |
| Elevation Ft: | 853 |
| Postal Code Type: | ZIP code |
| Postal Code: | 46792 |
| Blank Name: | FIPS code |
| Blank Info: | 18-60804[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 441372 |
Plum Tree is an unincorporated community in Rock Creek Township, Huntington County, Indiana.
Never officially platted, Plum Tree took its name from a large, wild plum tree.[2] A post office was established at Plum Tree in 1876, and remained in operation until it was discontinued in 1893.[3]