The Virgin Islands National Park is an American national park preserving about 60% of the land area of Saint John in the United States Virgin Islands, as well as more than 5,500 acres of adjacent ocean, and nearly all of Hassel Island, just off the Charlotte Amalie, Saint Thomas harbor.

Saint John is one of the Virgin Islands in the Caribbean Sea and a constituent district of the United States Virgin Islands (USVI), an unincorporated territory of the United States.