| Official Name: | Petersburg, Ohio |
| Settlement Type: | Unincorporated community |
| Mapsize: | 250px |
| Pushpin Map: | Ohio |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Jackson |
| Unit Pref: | Imperial |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Footnotes: | [1] |
| Elevation M: | 223 |
| Elevation Ft: | 732 |
| Coordinates: | 38.9897°N -82.7444°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 45640 |
| Area Code: | 740 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1062936 |
Petersburg is an unincorporated community in Scioto Township, Jackson County, Ohio, United States. It is located southwest of Jackson along Ohio State Route 776 at its intersection with Petersburg Road at 38.9897°N -82.7444°W.[2]
The Johnson Road Covered Bridge is located just southwest of Petersburg, on Johnson Road.