Grosvenor Square

For the former US embassy sometimes known as "Grosvenor Square", see Embassy of the United States in London. For the square of the same name in Dublin, see Grosvenor Square, Dublin.

The central garden in Grosvenor Square, now a public park (pictured November 2008)

Grosvenor Square (/ˈɡroʊvənər/ GROH-vən-ər) is a large garden square in the Mayfair district of Westminster, Greater London. It is the centrepiece of the Mayfair property of the Duke of Westminster, and takes its name from the duke's surname "Grosvenor". It was developed for fashionable residences in the 18th century. In the 20th it had an American and Canadian diplomatic presence, and currently is mixed use, commercial.