("Do not forget")
|Headteacher||Robert M Robinson, MBE, BSc, PCGE, MEd, PHQ (NI)|
|Local authority||Voluntary School - independent education authority|
|Colours||Black & white|
|Publication||The Campbellian, The Insider (school magazines)|
|Former pupils||Old Campbellians|
Campbell College founded in 1894, is one of N. Ireland's "most eminent schools". 
It is a private school/fee-paying independent secondary school classified as a voluntary B grammar school  located in Belfast, Northern Ireland. It is a day and boarding school educating boys from ages 11–18. It is one of the eight Northern Irish schools represented on the Headmasters' and Headmistresses' Conference and is a member of the Independent Schools Council.
The school occupies a 100-acre (40-hectare) estate in east Belfast, close to the Parliament Buildings at Stormont. All the school's facilities are located on this site, which also contains a small lake and forest named Netherleigh. Campbell's junior school – formerly located on an adjacent site and called Cabin Hill – is now also located on the site. The school has the oldest Combined Cadet Force in Ireland, with over 400 cadets. The school has an international reputation and attracts boarders from all over the world. Past pupils of the school are known as Old Campbellians and the school has an extensive past pupil organisation known as the Old Campbellian Society which has several branches across the United Kingdom as well as regular alumni reunions at the school itself.
It was founded in 1894 from a bequest from Henry James Campbell, who made his fortune in the linen trade. Initially the school was primarily a boarding school but it has, particularly since the 1970s, become primarily a day school and in 2009 had 879 pupils, only about 85 (10%) of whom were boarders. As a selective independent school it admits pupils based on academic selection. Until 2006 pupils began at the school at age 11, but since the closure of the school's separate preparatory school, Cabin Hill, the school has accepted pupils from 4 into the newly built Junior School and both boys and girls into the school's kindergarten located on the school's grounds. The Latin motto of the school is "Ne Obliviscaris" (Do not forget).
In 1935 Jimmy Steele led an attempted Irish Republican Army raid on the school to secure the arms inside the College Officers' Training Corps. The RUC at Strandtown was tipped off and the raid was unsuccessful. A gun battle took place at the gate lodge on Hawthornden Road in which Constable Ian Hay received five gunshot wounds, but survived. In 1936 Steele and three other IRA members were captured, prosecuted and imprisoned in Crumlin Road Gaol.
During World War II the school was requisitioned by the War Office as a hospital, with the pupils transferred to Portrush, north Antrim. Campbell lost 134 former students in World War I. There are separate memorials to the dead of both World Wars in the Central Hall.
Both of the above events were experienced firsthand by Albert Maxwell, BEM, who worked for the school as groundsman and head porter for 64 years. Maxwell retired in 1993 but continued to live in the school's Grade B1 listed gate lodge until his death in 1997.
The author C.S. Lewis, who grew up nearby, attended the school for two months before he was withdrawn because of a serious respiratory illness and sent to Malvern (Cherbourg School), famous at the time for treating people with lung problems. The gas lamppost on the school drive is claimed to have been the inspiration for that mentioned in Lewis' The Lion, the Witch and the Wardrobe. However, some sources state a lamppost in Crawfordsburn Country Park was the inspiration. Others believe that the gas lamps in the lower area of the woods on the Malvern Hills above the town were his inspiration.
Several Campbell students have been involved in filmmaking. These include William MacQuitty (A Night to Remember), Andrew Eaton (Resurrection Man), Nick Hamm (The Hole), Dudi Appleton (The Most Fertile Man in Ireland) and Mark Huffam (Saving Private Ryan). Composer David Catherwood is currently director of music at Campbell. A collection of Lepidoptera by Thomas Workman is displayed in the school.
On October 27, 2016 President of Ireland, Michael D. Higgins visited Linen Hall Library for the first time. A choir combining students from Holy Cross Boys’ Primary School and Campbell College performed at the special event. 
Currently there are six houses for day boys and one boarding house and these form the focus for participation across the curriculum. School houses are named after former masters and those of importance in the life of the school and play an integral part in everyday life in the school. The names of the current houses and their respective colours are:
- Alden's (Dark Green)
- Allison's (Light Green, formerly Brown)
- Davis's (Yellow)
- Dobbin's (Light Blue)
- Price's (Dark Blue)
- School House (Boarding House) (Black)
- Yates's (Red)
In the past there have been other Houses:
- Armour's (Grey)
- Bowen's (Maroon)
- Lytle's (Dark Green)
- Netherleigh (Junior House) (Light Blue)
- Norwood (Junior House) (Dark Green)
- Ormiston (Junior House) (Dark Blue)
- Tweskard (Junior House) (Red)
- Chase's (Orange)
Each house is run by a 'house master' who is in charge of managing the house, and overseeing the 'house tutors' all of who have allocated year groups, of which they are responsible for. Each house has a designated student who is 'head of house', and they usually have a deputy. However, this is not always the case. The head of house, along with his deputy are 6th form students who have earned responsibility within the school, and it is common place for them to also be prefects, or so called "peer mentors". These two students organise house sporting, charity and dramatic events, among various other things.
Much importance is placed upon the neatness of boys' appearance. School colours are black and white and/or green if you have been awarded major house colours. The school uniform consists of black badged blazer, House tie (with colour representing house), black trousers, black shoes with an optional V-neck pullover.
The college's shooting team is regarded as one of the best in the UK, consistently performing well in all major U19 competitions. The school has extensive sports facilities including rugby and football pitches, two water based hockey pitches, 25-metre indoor shooting range, four tennis courts, squash courts, a fitness suite, and a swimming pool. The 2006 opening of the new synthetic hockey pitches was marked with an exhibition match between the gold-winning 1988 Summer Olympics Great Britain and Northern Ireland hockey team and the school's 1st XI, which ended 3–2 to the Olympic champions of old. The Campbellians Hockey Club play at this venue.
A student can be awarded his "colours" as a tangible recognition of success achieved, dedication demonstrated and good example shown through the medium of any Campbell sport which participates in external/extramural competition, or through the College's music and drama programme.
The Colours system is divided into two categories, that is, Major Colours and Club Colours:
- The award of Major Colours permits the successful recipient to wear a green blazer with appropriate badge, a major colours tie and a green V-neck pullover.
- Club Colours are denoted by a different pocket on the black school blazer, the pocket design reflecting the student’s preferred discipline.
As a rule of thumb, Major Colours for sporting activities are gained by those who have successfully represented their senior team or age group team, in their respective sport throughout the season of the award, while demonstrating a high level of performance and an approach which is both dedicated and a fine example to their peers.
The award of Club Colours has two main functions. Firstly, the Colour acts as a reward given to senior boys who have not necessarily represented one of our first teams, been placed highly in individual sports competition or excelled in the areas of music or drama, but whose dedication and loyalty to the schools’s curriculum is unquestionable. Secondly, this Colour may be awarded to younger students as recognition of their success at what might be considered to be the developmental stage of their school career.
Students are nominated for Major and Club Colours by the member of staff in charge of the given activity to the Colours Committee. The Colours Committee comprises teaching staff whose interests within our total curriculum are wide and whose experience is considerable. Following due consideration and deliberation, decisions made by the Colours Committee are taken by its chairman to the Headmaster for his agreement.
Notable Old Campbellians
- Dudi Appleton, director, screenwriter and journalist
- Paul Bew, scholar and life peer
- Derek Bell, harpist, late member of The Chieftains
- Andrew Bree, swimmer
- Thomas Watters Brown, judge
- Gordon Burns, journalist and television presenter
- Sir Anthony Campbell, retired judge
- William C. Campbell, parasitologist and Nobel Laureate in Physiology/Medicine
- David Caves, actor who is perhaps best known for his role as Jack Hodgson in the BBC drama series Silent Witness
- Ben Clarke, The Apprentice candidate in 2009
- Sir John Collins, businessman
- David Crawford Librarian
- Freeman Wills Crofts, author; was a member of the school's first class in 1894
- George Currie, Northern Irish barrister and politician
- Eric Robertson Dodds, classical scholar
- William John English, Victoria Cross recipient whose medal was bequeathed to the school
- Thomas Henry Flewett, virologist
- Mike Gibson (rugby player)
- Ken Kennedy (rugby player)
- Lloyd Hall-Thompson, British Member of Parliament
- Paddy Hirsch, journalist, award-winning Marketplace radio producer and presenter
- Michael Hoey, golfer
- John Irvine, award-winning ITV News journalist
- Charles Lawson, actor
- Darren Meredith, footballer
- C.S. Lewis, Author
- Gary Lightbody, vocalist and guitarist in Snow Patrol
- William MacQuitty, film producer
- James Godfrey MacManaway, MP and Church of Ireland minister
- Tim Martin, founder and current Chairman of JD Wetherspoon
- Sir John MacDermott, Baron MacDermott, former Lord Chief Justice of Northern Ireland
- Alan McFarland, former British Army officer and Ulster Unionist politician
- Sir Percy McElwaine, barrister and Attorney General of Fiji
- Colonel Sir Michael McCorkell – Northern Irish soldier
- Alan McKibbin, British Member of Parliament
- John Morrow, peace activist
- James Simmons, poet
- Air Chief Marshal John Thomson, RAF officer
- Noel Thompson, BBC journalist
- Jamie Smith, rugby union footballer for Ulster
- Paddy Wallace, rugby union footballer for Ireland
- Edmund De Wind, Victoria Cross recipient
- Patrick Taylor, novelist, creator of the Irish Country series
- Henry Richard Parker, joint headmaster 1890–1896
- James Adams McNeill, joint headmaster 1890–96, headmaster 1896–1907
- Robert Arthur H MacFarland, 1907–1922
- William Duff Gibbon. 1922–1943 MA (Oxon), CBE DSO MC TD LLD. Educated at Trinity College, Oxford, Gibbon served as a Lieutenant-Colonel in the Worcestershire Regiment during World War I. In World War II he was the Officer Commanding in the Army Cadet Force. 1922–1943
- Ronald Groves, 1943–1954
- Francis John Granville Cook, 1954–1971
- Robin Milne Morgan, MA Hons (Aber) BA (Lond), 1971–1976
- Brian William John Gregg Wilson MA, 1977–1987
- Robert John Ivan Pollock, BSc MEd PhD CertEd CChem MRSC 1987 – 2005
- Brian Funstan BA 2005–2006 (Acting Headmaster)
- James "Jay" Piggot, BA MA 2006– 2012
- Robert M Robinson MBE, BSc MEd PQH (NI) 2012–
- Her Majesty The Queen (Queen Elizabeth The Queen Mother) (1 July 1951). "Campbell College Royal Charter". TIMOTHY WILLIAM FERRES. Retrieved 30 January 2016.
- Belfast Education and Library Board. "Campbell College".
- "What is a voluntary B School". campbellcollege.co.uk. Campbell College. Retrieved 17 March 2017.
- Hansard, publications.parliament.uk; accessed 17 March 2017.
- Robinson, Robert (19/09/2016). "Campbell College: 'Boys of four walk into the school and, from that day on, they will be Campbellians for rest of their lives'". http://www.belfasttelegraph.co.uk. Belfast Telegraph. Retrieved 30/1/2016. Check date values in:
|access-date=, |date=(help); External link in
- Northern Whig, 30 December 1935, pg. 3 (includes photograph)
- John McGuffin, Internment (1973), irishresistancebooks.com; accessed 17 March 2017.
- Haines, Keith. Neither rogues nor fools – a history of Campbell College. Belfast, Campbell College, 1993.
- "C S Lewis Foundation Chronology". Retrieved 2007-04-12.
- "Introduction to Campbell College Belfast Houses" (PDF).
- BBC Sport (17 March 2011). "Campbell College 18-11 RBAI". BBC News. Retrieved 5 June 2011.