Route 53 is a state highway in the U.S. state of Connecticut, connecting the cities of Norwalk and Danbury. Most of the route has been made redundant by U.S. Route 7, except for the last section from Bethel to Danbury, which is part of a direct route from the Bridgeport area to Danbury.

Norwalk is a city located in Western Connecticut, United States, in southern Fairfield County, on the northern shore of the Long Island Sound. Norwalk lies within both the New York metropolitan area and the Bridgeport metropolitan area.