|Motto||Nisi Dominus Aedificaverit|
|Department for Education URN||136606 Tables|
|Chair of Governors||Tony Walker|
|Headteacher||Mr Matthew Fletcher|
|Age||11 to 18|
|Former name||Rickmansworth Grammar School|
Rickmansworth is a day secondary school, providing education to boys and girls aged 11 to 18 of all academic abilities, although 25% of the 11+ intake are selected using tests in mathematics and verbal reasoning, with a further 10% selected for aptitude in music. Most children are admitted at 11 and there is an additional intake at 16 into the Sixth Form.
Rickmansworth is a self-governing academy school and the governing body are responsible for the employment of staff, the admission of pupils, and all aspects of the organisation and running of the School. Previously the school was a 'grant maintained school' in the 1990s, with much the same powers.
The school stands in twenty-six acres of Metropolitan Green Belt woodland situated in a residential area well served by road and rail, on the south side of the A412 near the Royal Masonic School. The M25 motorway is five minutes distant by car, and Croxley and Rickmansworth Metropolitan line stations are ten- and fifteen-minute walks respectively. Watford Junction station (National Rail to London Euston) is fifteen to twenty minutes by car.
Grammar school (1953-1969)
Rickmansworth Grammar School was the fifth grammar school to be built after the war. The school was built on the site of a house called Briery Close, which had been the residence of the vicar of Rickmansworth but had fallen vacant before the war. Because building at the site ran late, the first intake in September 1953 was housed in a school in Oxhey, until the Scots Hill premises opened in September 1954. The school was formally opened on 20 June 1956 by Countess Mountbatten of Burma. In the mid-1960s it had around 940 boys and girls, and was situated in 18 acres (7.3 ha) of land.
In September 1969 the school ceased to be academically selective and became fully comprehensive. The School was maintained as a county school by the Hertfordshire local education authority until September 1990, when it was among the first schools in the country to take advantage of the opportunity offered by grant-maintained status to become a self-governing school.
In 2003 the school was designated as a specialist Arts College, with a major focus on performing arts, and in April 2008 was awarded a second specialism as in Science. The school continues with the specialisms today.
On 1 April 2011, Rickmansworth School officially converted to an academy.
In 2013, it was announced that Dr Stephen Burton, who had been headmaster for over 10 years, had left the school's employment  It was announced, subsequently, the existing Bushey Meads School headteacher, Mr Keith Douglas, was to become Rickmansworth's Head in January 2014.
Flora advertising campaign
On 22 May 2007, the school's 7th, 8th and 9th years participated in a Flora advertising campaign whereby a photo of the three year groups was taken to be displayed on approximately 600 billboards around the UK, with text beneath likely saying "Two thirds of them will end up with raised cholesterol."
Mitchell and Webb
The school appeared in an episode of the BBC comedy That Mitchell and Webb Look in the sketch "The Surprising Adventures of Sir Digby Chicken-Caesar", in which the heroic duo break into the house of an elderly woman, tie her up and pretend that they are visiting "Dear Auntie Marigold". They steal her television and are pursued. Ginger is beaten up. They break into Rickmansworth School and steal scientific equipment in order to make crystal meth.
- Phil Clarke, Head of Comedy since 2013 at Channel 4, producer of Peep Show
- Adam Godley, actor
- Adrian Newman, Church of England bishop
- Nick Stringer, England international and London Wasps rugby player
- Kyla La Grange, singer
- Psalm 127.
Nisi Dominus aedificaverit domum in vanum laboraverunt qui aedificant eam. trans. (KJV): Except the LORD build the house, they labour in vain that build it.
- Rickmansworth School Sixth Form
- Greenman, Shirley (1996). A history of Croxley Green through its street names (PDF). Croxlex Green Parish Council. p. 28. ISBN 0-9528036-0-7.
- "Where are they now?" (PDF). The Rosarian Recorder (1): 2. 2015.
- Advertisement (30 April 1960) in New Scientist 32 (389): 324.
- Rickmansworth School Prospectus
- 2006 Exams Performance, BBC News.