Groton
- Country: United States
- State: Connecticut
- Population: 9,134 (2016)
- Latitude: 41° 21' N (41.3501°)
- Longitude: 72° 4.7' W (-72.07841°)
- Elevation: 24 m/79 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: East Side, Groton Bank, Groton Ferry, Groton Landing