St. Mary's Church, officially the Church of the Holy Name of Mary, Our Lady of the Isle, is a historic Catholic parish church complex at 14 William Street, the corner of Spring Street and Memorial Boulevard, in Newport, Rhode Island within the Diocese of Providence. It is the church of the oldest Catholic parish in the state. The church is also notable for hosting the wedding of Jacqueline Bouvier and Senator, later President, John F. Kennedy in 1953.

Newport is a seaside city on Aquidneck Island in Rhode Island, United States. It is located in Narragansett Bay, approximately 33 miles (53 km) southeast of Providence, 20 miles (32 km) south of Fall River, Massachusetts, 74 miles (119 km) south of Boston, and 180 miles (290 km) northeast of New York City. It is known as a New England summer resort and is famous for its historic mansions and its rich sailing history. The city has a population of about 25,000 residents.