Groton may refer to:

Places

England Groton, Suffolk

United States Groton, Connecticut, a town Groton (city), Connecticut, within the town Groton, Massachusetts, a town Groton (CDP), Massachusetts, the main village in the town Groton, New Hampshire Groton Wind Power Project Groton (town), New York Groton (village), New York, within the town Groton, South Dakota Groton, Vermont, a town Groton (CDP), Vermont, within the town

Boarding schools in the United States Groton School Lawrence Academy at Groton

Other Groton Bridge Company, a former American firm Groton High School (disambiguation)

See also Croton (disambiguation)