St Columb's College is a Roman Catholic boys' grammar school in Derry, Northern Ireland.

It is named after Saint Columba, the missionary monk from County Donegal who founded a monastery in the area.

St Columb's finally opened its doors on 3 November 1879 with two priest teachers, Edward O'Brien and John Hassan.

The immediate result was an explosion in pupil numbers, a shortfall in teaching staff and greater pressure on existing resources.

[citation needed] This figure does not include the £56,000 spent employing W & J McMonagle Ltd to construct the playing fields.

Following the lives of several Irish figures including Nobel laureates Seamus Heaney and John Hume who all attended the same small school in Derry in the 1950s and have helped transform modern Ireland.