The U.S. state of Connecticut first required its residents to register their motor vehicles in 1903. Registrants provided their own license plates for display until 1905, when the state began to issue plates. Since then, Connecticut has used a variety of license plate designs, and has issued different designs for passenger, non-passenger, and, more recently, optional plate types that often require an additional fee. As of 2024, plates are issued by the Connecticut Department of Motor Vehicles.
For most classes of vehicles, plates are issued in pairs, for the front and rear of the vehicle respectively, though single rear plates were issued between 1980 and 1987.