I believe that this is a complete list of hospitals used for military purposes in Ireland during the Great War:
| Armagh | County Infirmary |
| Athlone | Military Hospital |
| Ballincollig | Military Hospital |
| Ballymena | Waveney Hospital |
| Ballywalter | Red Cross Hospital |
| Bangor | Bangor Hospital |
| Belfast | Hilden Red Cross Convalescent Hospital |
| Belfast | Mater Infirmorum Hospital |
| Belfast | Military Hospital |
| Belfast | Royal Victoria Hospital |
| Belfast | UVF Hospital |
| Belfast | Ulster Volunteer Force Limbless Hospital, Belfast. A limbless unit for 50 men from Ulster. |
| Belfast | UVF Military Orthopaedic Hospital |
| Belfast | War Hospital. Formerly the Belfast District Lunatic Asylum at Belfast. Capacity for 8 officers and 342 other ranks. Used as a specialist mental hospital from July 1917. |
| Bere Island | Military Hospital |
| Birr | Military Hospital |
| Blackrock | Linden Auxiliary Hospital |
| Blackrock | Military Orthopaedic Hospital |
| Blackrock | Temple Hill Hospital |
| Bray | Duke of Connaught’s Auxiliary Hospital (formerly located in Princess Patricia Hospital, Bray). A limbless unit for 50 men from all of Ireland except Ulster. |
| Bray | Princess Patricia Red Cross Hospital |
| Buttevant | Military Hospital |
| Cahir | Military Hospital |
| Castleknock | Glenmaroon Auxiliary Hospital |
| Clonmel | Military Hospital |
| Cork | Central Military Hospital, Victoria Barracks |
| Cork | Eye And Ear Hospital |
| Cork | Mercy Hospital |
| Cork | North Cork Infirmary |
| Cork | South Cork Infirmary |
| Cork | St. Ann’s Hill Hydro |
| Cork | Victoria Hospital |
| Curragh | Curragh Military Hospital |
| Cushendall | Cottage Hospital |
| Downpatrick | County Infirmary |
| Drogheda | Cottage Hospital |
| Dublin | Adelaide Auxiliary Hospital |
| Dublin | Dr. Steven’s Auxiliary Hospital |
| Dublin | Drumcondra Auxiliary Hospital |
| Dublin | Dublin Castle Red Cross Hospital |
| Dublin | Fitzwilliam Auxiliary Hospital |
| Dublin | Irish Counties War Hospital |
| Dublin | Jervis Street Auxiliary Hospital |
| Dublin | King George V Hospital. Included a specialist neurological unit for cases identified in other hospitals in Ireland (rather than having been processed through the clearing system). |
| Dublin | Mater Auxiliary Hospital |
| Dublin | Meath Auxiliary Hospital |
| Dublin | Mercer’s Auxiliary Hospital |
| Dublin | Mountjoy Square Auxiliary Hospital |
| Dublin | National Children’s Hospital |
| Dublin | Portobello Military Hospital, Dublin. A 187-bed specialist venereal disease hospital opened in May 1916. |
| Dublin | Red Cross Hospital |
| Dublin | Richmond Children’s Hospital |
| Dublin | Richmond War Hospital. Formerly the Richmond District Asylum at Richmond, Dublin. Partly used for mental patients (capacity 32 other ranks) from 16 June 1916 to December 1919. |
| Dublin | Royal City Of Dublin Auxiliary Hospital |
| Dublin | Royal Military Infirmary |
| Dublin | Royal Victoria Eye And Ear Auxiliary Hospital |
| Dublin | Sir Patrick Dun’s Hospital |
| Dublin | St. Vincent’s Auxiliary Hospital |
| Enniskillen | County Infirmary |
| Fermoy | Military Hospital |
| Galway | Military Hospital |
| Gilford | Bannvale UVF Hospital |
| Gilford | Dumbarton House Hospital |
| Holywood | Holywood Military Convalescent Hospital, near Belfast. Under orders of Irish Command for men whose homes were in Ireland or who belonged to Irish regiments from any command. |
| Holywood | Military Hospital |
| Kells | Balrathbury House Hospital |
| Kildare | Military Hospital |
| Kilkenny | Lady Desart’s War Hospital |
| Kilkenny | Military Hospital |
| Kingstown | Corrig Castle Hospital |
| Kingstown | St. Michael’s Auxiliary Hospital |
| Kinsale | Military Hospital |
| Limerick | Military Hospital |
| Lisburn | County Infirmary |
| Londonderry | County Infirmary |
| Londonderry | Londonderry Military Hospital |
| Longford | Military Hospital |
| Lucan | The Hermitage Hospital |
| Monkstown House | Monkstown House Auxiliary Hospital |
| Mullingar | Bloomfield Auxiliary Hospital |
| Mullingar | Military Hospital |
| Naas | Military Hospital |
| Newbridge | Military Hospital |
| Newry | Newry General Hospital |
| Newtownards | Mountstewart House Red Cross Hospital |
| Omagh | County Infirmary |
| Queenstown | Military Hospital |
| Randalstown | Military Convalescent Hospital |
| Rathfarnham | Fetherstonhaugh Auxiliary Hospital |
| Stillorgan | Auxiliary Hospital |
| Strabane | Red Cross Hospital |
| Templemore | Military Hospital |
| Tipperary | Military Hospital |
| Tralee | Military Hospital |
| Waterford | Military Hospital |
| Whitehead | Railway Hospital |
| Whitehead | Red Cross Convalescent Hospital |