Box Hill School

Box Hill School was a private coeducational boarding and day school until they merged with Reigate Grammar School and became RGS Surrey Hills in 2025. It was situated in the village of Mickleham near Dorking, Surrey, England. Fees for day pupils started at £27,162 per year (up to £30,534 in the sixth form), and full boarding fees at £45,204 per year (up to £55,131 in the sixth form). The school was a founding member of the Round Square Conference of Schools (an association in which the school's founding headmaster, Roy McComish, played a vital role in the establishment and early administration of), as well as being a member of the Headmasters' and Headmistresses' Conference.

The school had offered the International Baccalaureate since September 2008 and re-introduced A levels in 2013, meaning both were available at Sixth Form. The school's patron was Queen Anne-Marie of Greece, who acted in this role alongside her husband Constantine II of Greece until his death in January 2023. Sir James Weatherall (the first commanding officer of the Royal Navy's flagship, the Ark Royal) served as warden of the school until his death in March 2018.