The 1st Durham Engineers, later Durham Fortress Engineers, was a Volunteer unit of the British Army's Royal Engineers. First founded in 1868 it was sometimes united with the Tyne Electrical Engineers, at other times it formed an independent unit. Although its main role was defence of the North East Coast of England, the unit sent detachments on active service to the Suakin Expedition, the Second Boer War, and the Western Front and Italy during the First World War.