Route 8 is a multi-state north–south state highway in the New England region of the United States, running from Bridgeport, Connecticut, through Massachusetts to Searsburg, Vermont. Its number dates from 1922, when it was a New England Interstate Route, also known as the Stratford-Waterbury-North Adams Route (for the cities the original route connected). Most of the old route in Connecticut has been upgraded to a freeway and is a major transportation link between the cities of Bridgeport and Waterbury.