Melville is a census-designated place (CDP) in the towns of Middletown and Portsmouth in Newport County, Rhode Island, United States. It lies along the shore of Narragansett Bay. The population of the CDP was 1,320 at the 2010 census. The CDP is named after Admiral George Wallace Melville. Past names for the area include Portsmouth Grove and Bradford.

Middletown is a town in Newport County, Rhode Island, United States. The population was 17,075 at the 2020 census. It lies to the south of Portsmouth and to the north of Newport on Aquidneck Island, hence the name "Middletown."