Sutton High School is an independent day school for girls aged 3–18 in Sutton, Greater London. It is run by the Girls' Day School Trust (GDST).

Sutton is a town in the London Borough of Sutton in South London, England. It is the administrative headquarters of the Outer London borough, on the lower slopes of the North Downs. It is 10 miles (16 km) south-southwest of Charing Cross, one of the fourteen metropolitan centres in the London Plan. The population of the town was counted as 41,483 in the 2011 census, while the borough overall counted 204,525.