Harwinton (/ˈhɑːrwɪntən/ HAHR-win-tən) is a town in Litchfield County, Connecticut, United States.

Prior to settlement by colonists, Harwinton sat at the confluence of various tribal territories, notably that of the Tunxis tribe.

[3] The Connecticut Colony granted and split the area of modern-day Harwinton to the townships of Hartford and Windsor in May 1729.

The southeastern portion of the town contains the Roraback Wildlife Area and several reservoirs.

Per the 2020 United States Census,[9] there were 5,484 people and 1,641 family households living in the town.

[10] Connecticut Route 4 connects the town to Torrington in the northwest and to Hartford in the east.