Clifton College is a public school in the city of Bristol in South West England, founded in 1862 and offering both boarding and day school for pupils aged 13–18. In its early years, unlike most contemporary public schools, it emphasised science rather than classics in the curriculum, and was less concerned with social elitism, for example by admitting day-boys on equal terms and providing a dedicated boarding house for Jewish boys, called Polack's House. Having linked its General Studies classes with Badminton School, it admitted girls to every year group in 1987, and was the first of the traditional boys' public schools to become fully coeducational. Polack's House closed in 2005 but a scholarship fund open to Jewish candidates still exists. Clifton College is one of the original 26 English public schools as defined by the Public Schools Yearbook of 1889.

In England and Wales, a public school is a type of fee-charging private school originally for older boys. They are "public" in the sense of being open to pupils irrespective of locality, denomination or paternal trade or profession; nor are they run for the profit of a private owner.