Litchfield is a town in and former county seat of Litchfield County, Connecticut, United States. The population was 8,192 at the 2020 census. The town is part of the Northwest Hills Planning Region. The boroughs of Bantam and Litchfield are located within the town. There are also three unincorporated villages: East Litchfield, Milton, and Northfield. Northfield, located in the southeastern corner of Litchfield, is home to a high percentage of the Litchfield population.

Tapping Reeve was an American lawyer, judge, and law educator. In 1784 he opened the Litchfield Law School, the first law school in the United States, in Litchfield, Connecticut.