Middlebury is a town in New Haven County, Connecticut, United States.

It is a suburb of the nearby city of Waterbury to its south, and is on the northern fringe of the New York metropolitan area.

Middlebury was incorporated as a town in 1807, and named from its central position relative to Waterbury, Woodbury, and Southbury.

Towns that border Middlebury are Southbury, Woodbury, Watertown, Waterbury, Naugatuck and Oxford.

20.1% of all households were made up of individuals, and 11.9% had someone living alone who was 65 years of age or older.