| Surname | Forename | Rank | Unit | Born | Resided |
| SHERIDAN | John | Private | Royal Dublin Fusiliers | Born Dublin | |
| SHERIDAN | John | Private | Royal Dublin Fusiliers | Born Swords, Co. Dublin | Resided Swords |
| SHERIDAN | Joseph Patrick | Private | Royal Dublin Fusiliers | Born Dublin | |
| SHERIDAN | Leonard | Private | Queen's Own Cameron Highlanders | Born Rathmines, Dublin, Ireland | Resided Dublin |
| SHERIDAN | Michael | Private | Royal Dublin Fusiliers | Born Dublin | |
| SHERIDAN | Nicholas J. | Private | Irish Guards | Born Dublin | |
| SHERIDAN | Patrick | Private | Royal Dublin Fusiliers | Born Dublin | |
| SHERIDAN | Patrick | Lance Corporal | Royal Irish Regiment | Born St. Mary S, Dublin | Resided Ballyrorey, Co. Wexford |
| SHERIDAN | Patrick | Private | Irish Guards | Born Dublin | |
| SHERIDAN | William | Rifleman | Royal Irish Rifles | Born Dublin | Resided Dublin |
| SHERLOCK | John | Donkeyman | S.S. "Farnham" (Sunderland) | Born in Dublin | |
| SHERLOCK | Charles Gregg | Captain | Royal Army Medical Corps | | |
| SHERLOCK | Francis | Private | Royal Dublin Fusiliers | Born Dublin | |
| SHERLOCK | George | Lance Corporal | Princess Victoria's (Royal Irish Fusiliers) | Born Dublin | |
| SHERLOCK | John | Private | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| SHERMAN | John | Private | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| SHERRY | William | Private | Calais Company | | |
| SHERWIN | John P. | Private | Seaforth Highlanders (Rossshire Buffs, the Duke of Albany's) | Born Dublin | |
| SHERWOOD | William H. | Private | Irish Guards | Born Rathmines, Co. Dublin | |
| SHIELDS | John | Stoker | H.M.S. "Queen Mary" | | |
| SHIELDS | Henry | Private | Irish Guards | Born Swords, Co. Dublin | Resided Swords, Co. Dublin |
| SHORT | Patrick Joseph | Stoker | H.M.S. "Bulwark" | Native of Dublin | |
| SHORT | William Leo | Private | King's (Liverpool Regiment) | Born Dublin | Resided Liverpool |
| SHORTT | Berkeley Francis | Private | 1st Battalion, Auckland Regiment, New Zealand Expeditionary Force | | |
| SHOVELAN | Daniel | Private | Lincolnshire Regiment | Born St. Andrew's, Dublin | |
| SHULEY | G | Sergeant | Queen's Own Cameron Highlanders | | |
| SIDES | Willoughby | Private | Manchester Regiment | Born Dublin | |
| SIMINGTON | Joseph | Cadet | Royal Dublin Fusiliers | Born Dublin | |
| SIMPSON | Richard Dyer | Gunner | 17th Battery, Canadian Field Artillery | | |
| SIMPSON | Gordon Douglas | Seaman | H.M.S. "Goliath" | | |
| SIMPSON | Bertram Elsworth | Lance Corporal | Royal Dublin Fusiliers | Born HerrworthonTree, Durham | Resided Dublin |
| SIMPSON | Walter | Private | Royal Scots Fusiliers | Born Liverpool | Resided Dublin |
| SIMS | J | Private | 2nd Battalion, Canadian Infantry (Eastern Ontario Regiment) | | |
| SIMS | John Joseph | Ordinary Seaman | H.M.S. "Formidable" | | |
| SINCLAIR | Alexander | Sergeant | Connaught Rangers | Born India | Resided Dublin |
| SINES | James | Private | Cheshire Regiment | Born Dublin | |
| SINGLETON | Hugh | Private | Royal Dublin Fusiliers | Born Dublin | |
| SKELLY | William | Lance Corporal | Royal Dublin Fusiliers | Born Dublin | |
| SKERRETT | Henry | Private | 14th Battalion, Australian Infantry, Australian Imperial Force | | |
| SKERRETT | Richard | Private | Royal Irish Regiment | Born St. Peter's Dublin | |
| SKIDMORE | William | Private | Royal Scots (Lothian Regiment) | Born Dublin | Resided Portobello, Midlothian |
| SKINNER | John | Corporal | Royal Irish Rifles | Born Dublin | |
| SKINNER | Patrick | Private | Royal Dublin Fusiliers | Born Dublin | |
| SLATER | John | Private | Royal Dublin Fusiliers | Born Dublin | |
| SLATER | Patrick | Private | Royal Dublin Fusiliers | Born Cabinteely, Co. Dublin | |
| SLATOR | Thomas | Private | Machine Gun Corps | Born St. Andrew's, Dublin | Resided Dublin |
| SLEATER | John | Rifleman | Royal Irish Rifles | Born Dublin | |
| SLEVIN | John | Private | Royal Dublin Fusiliers | Born Dublin | |
| SLEVIN | Martin | Private | King's Own (Royal Lancaster Regiment) | Born Dublin | |
| SLOAN | Harold Alexander | Second Lieutenant | 198th Siege Battery, Royal Garrison Artillery | | |