史密斯广场（ Smith Square ）位于伦敦市西敏城下属的西敏区。

著名的史密斯广场圣约翰堂（St John’s, Smith Square）就矗立在史密斯广场中心。如今，圣约翰堂已经改作音乐厅。

Smith Square is a square in the Westminster district of London, just south of the Palace of Westminster. The centre of the square is occupied by St John's, Smith Square, a Baroque church now used as a concert hall. Most of the square is now taken up by offices and the location means that they are mostly occupied by organisations associated with government, or that need to be near it for lobbying purposes. In the mid 20th century the square hosted the headquarters of both the main parties of British politics, and it is now home to the Department for Environment, Food and Rural Affairs, the Local Government Association and the London base of the European Parliament and European Commission.