Petersburg
- Country: United States
- State: West Virginia
- Population: 2,573 (2016)
- Latitude: 38° 59.6' N (38.99261°)
- Longitude: 79° 7.4' W (-79.12392°)
- Elevation: 284 m/932 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: Grant Court House, Luneys Creek, Luney's Creek, Lunice Creek, Petersburgh