Connecticut's 4th congressional district is a congressional district in the U.S. state of Connecticut. Located in the southwestern part of the state, the district is largely suburban and extends from Bridgeport, the largest city in the state, to Greenwich – an area largely coextensive with the Connecticut side of the New York metropolitan area. The district also extends inland, toward Danbury and toward the Lower Naugatuck Valley.

James Andrew Himes is an American businessman and politician serving as the U.S. representative for Connecticut's 4th congressional district since 2009. A member of the Democratic Party, he is the ranking member of the House Permanent Select Committee on Intelligence.