| Surname | Forename | Rank | Unit | Born | Resided |
| RYLAND | George | Sergeant | Royal Irish Regiment | Born Swords, Co. Dublin | Resided Dun Laoghaire, Co. Dublin |
| RYLANDS | Thomas | Private | Prince of Wales's Leinster Regiment (Royal Canadians) | Born Dublin | |
| SALMON | Michael | Private | Household Cavalry and Cavalry of the Line (including Yeomanry) | Born Dublin | |
| SAMMON | Michael | Private | Buffs (East Kent Regiment) | Born Dublin, Ireland | Resided Dublin, Ireland |
| SAMUELS | Arthur Molesworth O D | Second Lieutenant | Royal Irish Fusiliers | | |
| SAMUELS | Arthur Purefoy Irwin | Captain | C Company, 11th Battalion, Royal Irish Rifles | | |
| SAMUELS | Edward | Gunner | Royal Horse Artillery and Royal Field Artillery | Born Dublin | |
| SANDERSON | William Howard | Lieutenant | 4th Battalion, Royal Irish Regiment | | |
| SANDERSON | Charles | Private (Lance Corporal) | Royal Irish Regiment | Born Dublin | |
| SANDERSON | Joseph | Gunner | Royal Garrison Artillery | Born Dublin | Resided King's Cross, Middx. |
| SANKEY | Edward Fetherston | Telegraphist | H.M. Trawler "Ethelwulf" | Born in Dublin | |
| SARA | Henry | Lance Corporal | King's (Liverpool Regiment) | Born Dublin | Resided Hereford |
| SARGENT | Robert | Private | Irish Guards | Born Dublin | |
| SARSFIELD | George | Private | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| SAUNDERS | Thomas Ernest | Private | B Company, Wellington Regiment, New Zealand Expeditionary Force | | |
| SAUNDERS | Robert | Deck Hand | H.M.T. "Grecian Empire" | | |
| SAUNDERS | Arthur | Gunner | Royal Horse Artillery and Royal Field Artillery | Born St. Anns, Dublin | |
| SAUNDERS | Samuel | Private | Princess Victoria's (Royal Irish Fusiliers) | Born Dublin | |
| SAUNDERS | William | Private | Royal Dublin Fusiliers | Born Dublin | |
| SAVAGE | Patrick Joseph | Private | Household Cavalry and Cavalry of the Line (including Yeomanry) | Born St. Andrew's, Dublin | Resided Dublin |
| SAVAGE | Richard Patrick | Private | Prince Of Wales's Own (West Yorkshire Regiment) | Born Dublin | Resided Kennington, London |
| SAWYER | Cherry John | Private | Essex Regiment | Born Dublin | Resided Holloway, Middlesex |
| SAYERS | David | Lance Corporal | Royal Inniskilling Fusiliers | Born St. Thomas's, Dublin | |
| SCALLAN | Richard Talbot | Second Lieutenant | Royal Garrison Artillery, attached 10th Prisoner of War Company, Labour Corps | | |
| SCALLY | Joseph | Sergeant | Irish Guards | Born Dublin | Resided Billericay, Essex |
| SCALLY | Michael | Private | Connaught Rangers | Born Boyle, Co. Roscommon | Resided Dublin |
| SCANLAN | James | Private | Canterbury Regiment, New Zealand Expeditionary Force | | |
| SCANLON | Patrick | Rifleman | Royal Irish Rifles | Born Dublin | |
| SCHEURER | Arthur Alfred | Private | Manchester Regiment | Born Dublin | |
| SCHOLEFIELD | Cyril Hamilton Reid | Major | 69th Siege Battery, Royal Garrison Artillery | | |
| SCHWER | Frederick Herbert | Drummer | Cheshire Regiment | Born Rathmines, Dublin | |
| SCOTT | Charles Victor Christian | Private | 3rd Battalion, Canadian Infantry (Central Ontario Regiment) | | |
| SCOTT | John Joseph | Private | 38th Battalion, Australian Infantry, Australian Imperial Force | Native of Ballsbridge, Dublin | |
| SCOTT | John | Private | 2nd Canadian Mounted Rifles (British Columbia Regiment) | Born in Dublin | |
| SCOTT | John Davie | Lieutenant Colonel | 2nd Battalion, Royal Irish Regiment | | |
| SCOTT | Leonard | Second Lieutenant | 1st Battalion, attached 12th Battalion, Suffolk Regiment | | |
| SCOTT | Noel Edmond | Lieutenant | 422nd (West Lancashire) Field Company, Royal Engineers | Born Monasterevan, Co. Kildare | |
| SCOTT | Henry | Sergeant | Northamptonshire Regiment | Born Dublin, Ireland | |
| SCOTT | John | Private | Connaught Rangers | Born Dun Laoghaire, Co. Dublin | Resided Dun Laoghaire |
| SCOTT | Richard | Sergeant | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| SCOTT | William Howard | Private | Essex Regiment | Born Dalkey, Co. Dublin | Resided Wolverhampton |
| SCOTT | George | Lance Corporal | Royal Irish Regiment | Born Londonderry | Resided Dublin |
| SCULLY | Thomas Creagh | Staff Sergeant | South African Medical Corps | | |
| SCULLY | John | Private | Royal Inniskilling Fusiliers | Born Chapelizod, Co. Dublin | |
| SCULLY | Joseph | Private | Royal Dublin Fusiliers | Born Dublin | |
| SCULLY | Michael | Private | Royal Dublin Fusiliers | Born Dublin | |
| SCULLY | Patrick J. | Private | Princess Victoria's (Royal Irish Fusiliers) | Born Dublin | |
| SCULLY | Simon | Private | Machine Gun Corps | Born Tallaght, Dublin | Resided Rathmines, Dublin |
| SCULLY | Thomas | Private | Princess Victoria's (Royal Irish Fusiliers) | Born Dublin | Resided Clifden, Co. Galway |
| SCULLY | William | Lance Corporal | Royal Dublin Fusiliers | Born Dublin | |