Pittsburg
- Country: United States
- State: New Hampshire
- Population: 832 (2016)
- Latitude: 45° 3.1' N (45.051°)
- Longitude: 71° 23.5' W (-71.392°)
- Elevation: 404 m/1,325 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)