Cheam is a suburb of London, England, 10.9 miles (17.5 km) southwest of Charing Cross. It is divided into North Cheam, Cheam Village and South Cheam. Cheam Village contains the listed buildings Lumley Chapel and the 16th-century Whitehall. It is adjacent to two large parks, Nonsuch Park and Cheam Park. Nonsuch Park contains the listed Nonsuch Mansion. Parts of Cheam Park and Cheam Village are in a conservation area. Cheam is bordered by Worcester Park to the northwest, Morden to the northeast, Sutton to the east, Epsom, Ewell and Stoneleigh to the west and Banstead and Belmont to the south.

Nonsuch Park is a public park between Stoneleigh, Cheam, and Ewell in the borough of Epsom and Ewell in Surrey, England. It borders the London Borough of Sutton. It is the last surviving part of the Little Park of Nonsuch, a deer hunting park established by Henry VIII surrounding the former Nonsuch Palace.