The West End is a broad, unofficial area of central London that mainly falls within the borders of Westminster City Council, and encompasses Soho, Mayfair and parts of Fitzrovia and Marylebone. It is best known for its entertainment (including theatres!) around Leicester Square, Piccadilly Circus and Covent Garden, and its shopping districts around Oxford Street, Regent Street and Bond Street.
West End Theatres are theatre venues that are predominantly located within the West End area, and are members of the trade association the Society of London Theatre (formerly the Society of West End Theatre). Check out a full list of West End Theatre venues. Also read about who owns West End Theatres.