| Official Name: | Oak Grove |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Indiana#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Starke |
| Subdivision Type3: | Township |
| Subdivision Name3: | Washington |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 738 |
| Coordinates: | 41.2878°N -86.4861°W |
| Postal Code: | 46511 |
| Area Code: | 574 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 440400 |
Oak Grove is an unincorporated community in Washington Township, Starke County, in the U.S. state of Indiana.