The Royal Inniskilling Fusiliers was an Irish line infantry regiment of the British Army in existence from 1881 until 1968. The regiment was formed in 1881 by the amalgamation of the 27th (Inniskilling) Regiment of Foot and the 108th Regiment of Foot. It saw service in the Second Boer War, the First World War and the Second World War. In 1968 it was amalgamated with the other regiments in the North Irish Brigade, the Royal Ulster Rifles, and the Royal Irish Fusiliers (Princess Victoria's) into the Royal Irish Rangers.