Formed in Dublin in July 1916. Moved to Aldershot by January 1918 but absorbed by 3rd Battalion in May 1918.
Nov 1917 some 200 rifles were stolen from the Battalion at Longford. Capt Terence Poulter, an officer in the battalion wrote afterwards that it had been infiltrated by Longford IRA
Officers
BLACKWELL Lieutenant Walter .11th Battalion Son of William and Alicia Blackwell; husband of F. E. Blackwell, of 4, Herbert Avenue, Merrion, Dublin.Killed in action 28th September 1918. Age 28. Haringhe (Bandaghem) Military Cemetery - Belgium.
GRATTON ESMONDE Lt Col L. who has been appointed to command 11th Res Battalion Royal Dublin Fusiliers. Previously 10th Battalion 23 Jul. 1916
HARVEY 2nd Lt John Alan 11th Battalion Only son of the Rev. Ralph Harvey and Hannah Constance Harvey, of The Rectory, Charleville, Co. Cork. Died 20/11/1917. age 20. Croisilles Cemetery
HORA Major P. H. second in command. 10th battalion Royal Dublin Fusiliers has been appointed second in command 11th battalion Royal Dublin Fusiliers. 23 Jul. 1916
POULTER Capt Terence at Longford with the battalion in Nov 1917