Beechwood is a Gilded Age mansion and estate located at 580 Bellevue Avenue in Newport, Rhode Island best known for having been owned by the Astor family. Part of the Bellevue Avenue Historic District, the first version of the residence was built between 1852 and 1853 and designed in the Italianate style by Andrew Jackson Downing and Calvert Vaux. Following a fire in 1855, Vaux rebuilt the house with modified plans. Richard Morris Hunt renovated the estate in 1881 after it was bought the year before by William Backhouse Astor, Jr.

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 Gilded Age mansions built as summer retreats around the turn of the 20th century by the extremely wealthy, including the Vanderbilt and Astor families. Many of the homes represent pioneering work in the architectural styles of the time by major American architects.