Stewart Brett McKinney was an American politician of the Republican Party who represented Connecticut's 4th congressional district in the House of Representatives from 1971 until his death. He is perhaps best known for coining the phrase "too big to fail" in regard to large American financial institutions, as well as for his struggle with, and eventual death from, AIDS.

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.