The Bellevue Avenue Historic District is located along and around Bellevue Avenue in Newport, Rhode Island, United States. Its property is almost exclusively residential, including many of the mansions built by affluent summer vacationers in the city around the turn of the 20th century, including the Vanderbilt family and Astor family. Many of the homes represent pioneering work in the architectural styles of the time by major American architects.
It was declared a National Historic Landmark in 1976. Several of the mansions within the district had themselves attained NHL status as well, or have done so since then. It has become one of Newport's major tourist attractions.