Marylebone is an area in London, England and is located in the City of Westminster. It is in Central London and part of the West End. Oxford Street forms its southern boundary.

The City of Westminster is a city and borough in London. It is the site of the United Kingdom's Houses of Parliament and much of the British government. It occupies a large area of central London, including most of the West End. Many London landmarks are within the borough, including Buckingham Palace, Westminster Abbey, Whitehall, Westminster Cathedral, 10 Downing Street, and Trafalgar Square.