Laconia
- Country: United States
- State: New Hampshire
- Population: 16,470 (2016)
- Latitude: 43° 31.7' N (43.52785°)
- Longitude: 71° 28.2' W (-71.47035°)
- Elevation: 153 m/502 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: City of the Lakes, Meredith Bridge