Campbell College is a private school/fee-paying independent secondary school classified as a voluntary B grammar school and fee-paying preparatory department located in Belfast, Northern Ireland. Founded in 1894. 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.
This prestigious school has had an interesting history since it was founded in 1894 from a bequest by Henry James Campbell. The school was caught up in an IRA gun battle in 1935 and during World War II the pupils temporarily relocated to Portrush when the school was requisitioned by the War Office to become a hospital. Many of the “Old Campbellions” who passed through its gates went on to become journalists, film makers, judges and peace activists. C.S. Lewis grew up nearby and briefly studied here before he was sent to a school that specialised in pupils with lung problems.
Francis John Granville Cook was Headmaster, 1954–1971.