The London Borough of Merton is a borough in south-west London, England. The borough was formed under the London Government Act 1963 in 1965 by the merger of the Municipal Borough of Mitcham, the Municipal Borough of Wimbledon as well as the Merton and Morden Urban District, all formerly within Surrey. The borough derives its name from the historic parish of Merton, which was centred around the area now referred to as South Wimbledon. The local authority is Merton London Borough Council.
Merton covers a total area of around 14.52 square miles. Merton is served by a wide selection of National Rail stations across the borough, as well as the southern tip of the London Underground's Northern line along with the District line around the Wimbledon branch. It is the only London Borough which has tube, rail and tram services.
The main commercial centres in Merton are Mitcham, Morden and Wimbledon, of which Wimbledon is the largest. Other smaller centres consist of Raynes Park, Colliers Wood, South Wimbledon, Wimbledon Park and Pollards Hill. Each year, Wimbledon, one of the four tennis Grand Slam tournaments, is held at the All England Lawn Tennis and Croquet Club in Church Road Wimbledon. The event takes place over a fortnight at the end of June and start of July and it's the largest annual sporting occasion to take place in the UK, attracting over 200000 guests for the duration of the Wimbledon fortnight.