Sutton Grammar School

Sutton Grammar School (formerly Sutton Grammar School for Boys) is an 11–18 boys selective state grammar school located in South London. The school's main site is in Sutton and its playing fields are in neighbouring Cheam, Surrey. In 2022, a total of 1,034 students were enrolled at Sutton Grammar School, with 355 enrolled in the co–educational sixth form provision at the school.

Sutton Grammar School converted to become an academy school in May 2011.

As of 2025, the school is now enrolling year 7 forms of 30 pupils, rather than 27 in previous years, so will have a total enrolment of 1105 students by 2029, including approximately 360 in the co-educational sixth form.