St Columba's College is a Roman Catholic independent school for boys aged 4–18. Located in St Albans, Hertfordshire, it was founded in 1939 by Philip O’Neill before being acquired by the Brothers of the Sacred Heart in 1955. It is a member of the Headmasters' and Headmistresses' Conference of leading independent schools. Facing St Albans Cathedral across the River Ver, the college is built around two historic houses, Watling House and Iona House.