The King's School is a public school (English independent day and boarding school for 13 to 18 year old pupils) in Canterbury, Kent, England. It is a member of the Headmasters' and Headmistresses' Conference and the Eton Group. It is Britain's oldest public school; and is arguably the oldest continuously operating school in the world, since education on the Abbey and Cathedral grounds has been uninterrupted since AD 597.