The King's School is a selective British co-educational independent school for both day and boarding pupils in the English city of Canterbury in Kent. It is a member of the Headmasters' and Headmistresses' Conference and the Eton Group. It is held to be the oldest continuously operating school in the world, having been founded in 597 AD.

In 2011, the school was subject to its latest regular, independent inspection. In summary, the inspection team praised the pastoral care system, the high academic achievements of all its pupils—irrespective of their age, aptitude or ability—and the happiness of the pupils. According to the Good Schools Guide the school is "Highly successful, producing excellent results." The Guide also stated that "You need to be creative, academically able and hard-working, as everything moves fast here."

King's Week festival is a festival of arts, held during the last week of the summer term, introduced by Fred Shirley. The week culminates in Commemoration day (known as "commem day") on the last day of the school year when the school leavers in 6a wear court dress and the whole school attends a service to commemorate the school benefactors.