Mystic is a village and census-designated place (CDP) in New London County, Connecticut, in the United States. The population was 4,001 at the 2000 census. A historic locality, Mystic has no independent government because it is not a legally recognized municipality in the state of Connecticut. Rather, Mystic is located within the towns of Groton (west of the Mystic River, and also known as West Mystic) and Stonington (east of the Mystic River).
Historically a leading seaport of the area, the story of Mystic's nautical connection is told at Mystic Seaport, the nation's largest maritime museum, which has preserved a number of sailing ships (most notably the whaler Charles W. Morgan) and seaport buildings. The village is located on the Mystic River, which flows into Long Island Sound, providing access to the sea. The Mystic River Bascule Bridge crosses the river in the center of the village.
Before the 17th century, the Pequot had established an empire across southeastern Connecticut. For many years, historians believed that they migrated in the 16th century from eastern New York. Archaeological evidence showing the presence of a people who lived in an area called Gungywump, somewhat northwest of the Mystic River, now suggests that the Pequot were indigenous to southeastern Connecticut.