St George's School, Harpenden (also known as St George's) is a non-selective state day and boarding school in Harpenden, Hertfordshire, England, educating students of both sexes between the ages of eleven and eighteen, with an emphasis on its Christian ethos.

The Harpenden site was discovered by one of the masters, a new limited company was formed and Grant together with 59 boys and girls and many of the staff moved there.

The new school where pupils could live in an atmosphere closely related to family life, based on sound Christian principles was officially opened in 21 June 1907.

The initial location is unclear, but in 1924 moved to Kingston Lodge, adjacent to the school grounds.

In 1932 the school was renamed to St George's Children's House to attract larger numbers.

Houses of the school were named after both men as well as Monk and Goddard, old Georgians who had died in the First World War.

[10] Names of the boarding houses: Crosthwaite, Keswick and Skiddaw come from locations near the Cumbrian school.

The Cinema Museum in London holds film of the school, its sports day, processions and activities from 1949.

In the sense of "I have raised my sights" this is equivalent to the English motto Aim Higher, which appears over one archway at the front entrance of Keswick House.

[14] The school is centred on a late-nineteenth-century chapel,[15] which is led by a resident chaplain and supported by a part-time organist.

[21] The school is notable for having first fielded the English national players Owen Farrell and Maro Itoje, alongside two other members of England's rugby union team (as of 2019).