| Surname | Forename | Rank | Unit | Born | Resided |
| THOMPSON | William | Lance Corporal | King's Own Scottish Borderers | Born Dublin | Resided Manchester, Lancs |
| THOMPSON | William | Lance Corporal | Royal Inniskilling Fusiliers | Born Drumcondra, Dublin | |
| THOMPSON | William Ernest | Rifleman | Rifle Brigade (The Prince Consort's Own) | Born Dublin | Resided Folkestone, Kent |
| THOMPSON | Robert | Lance Corporal | Royal Irish Rifles | Born Belfast | Resided Dublin |
| THOMSON | George Robert | Corporal | 21st Battalion, Australian Infantry, Australian Imperial Force | Born at Dublin | |
| THORNTON | Thomas Gordon | Private | 1st Canadian Mounted Rifles (Saskatchewan Regiment) | | |
| THORNTON | Stanislaus Bonaventure | Second Lieutenant | 2nd Battalion, South Staffordshire Regiment | | |
| THORNTON | George | Private | Royal Dublin Fusiliers | Born Dublin | Resided Bishopscourt, Co. Kildare |
| THORNTON | John | Private | Royal Dublin Fusiliers | Born Dublin | |
| THORNTON | William | Lance Corporal | Royal Inniskilling Fusiliers | Born Dublin | |
| THORP | Harold | Private | Royal Army Medical Corps | Born Bessbrook, Co. Armagh | |
| THRIEPLAND | Thomas | Private | Royal Munster Fusiliers | Born Dublin | Resided Glasgow |
| THURLOW | Joseph | Quartermaster Sergeant | Royal Dublin Fusiliers | Born Dublin | |
| TIBBERT | Christopher H. | Company Sergeant Major | Highland Light Infantry | Born Dublin | Resided Glasgow |
| TICHBORNE | John | Captain | Royal Army Medical Corps | | |
| TIDY | James | Corporal | Princess Victoria's (Royal Irish Fusiliers) | Born Dublin | Resided Dublin |
| TIDY | John | Private | Royal Dublin Fusiliers | Born Dublin | |
| TIERNAN | Michael | Able Seaman | S.S. "Pinegrove" (Glasgow) | | |
| TIERNEY | Ed Brendon | Apprentice | S.S. "Darius" (Sunderland) | | |
| TIERNEY | Joseph Valentine | Corporal | Corps Of Royal Engineers | Born St. Andrews, Co. Dublin | Resided Milltown, Co. Dublin |
| TIERNEY | Patrick | Private | Royal Dublin Fusiliers | Born Dublin | |
| TIERNEY | Patrick | Private | East Lancashire Regiment | Born Dublin | |
| TIGHE | Christopher | Corporal | Connaught Rangers | Born Dublin | Resided Dublin |
| TIMMINS | Joseph | Private | Royal Dublin Fusiliers | Born Dublin | |
| TIMMINS | Michael | Private | Royal Dublin Fusiliers | Born Dublin | |
| TIMMONS | Patrick | Private | Royal Dublin Fusiliers | Born Saggart, Co. Dublin | Resided Rathcoole |
| TIMONS | Thomas | Private | Royal Dublin Fusiliers | Born Dublin | |
| TOBIAS | Henry Croahelm | Private | 2nd Battalion, Canadian Infantry (Eastern Ontario Regiment) | | |
| TOBIN | Alfred | Private | Lincolnshire Regiment | Born Dublin, Co. Down | Resided Norwich |
| TOBIN | John | Private | Connaught Rangers | Born Dublin | Resided Dublin |
| TOBIN | Thomas | Private | Royal Army Service Corps | Born St. Helens, Lancs | Resided Dublin |
| TODD | Benjamin Hall | Guardsman | Grenadier Guards | Born Kingston, Dublin | |
| TODD | Joseph | Private | Prince of Wales's Leinster Regiment (Royal Canadians) | Born Dublin | |
| TODHETLY | Patrick James | Private | Lincolnshire Regiment | Born Dublin | Resided Lincoln |
| TOHILL | John Patrick | Private | Royal Army Service Corps | Born Belfast | Resided Dublin |
| TOLSTER | Michael | Private | Royal Inniskilling Fusiliers | Born Dublin | |
| TOMNEY | Francis | Private | Royal Dublin Fusiliers | Born Dublin | |
| TONER | William | Carpenter | S.S. "Greldon" (Cardiff) | Born in Dublin | |
| TONER | William | Private | Connaught Rangers | Born Glasgow | Resided Dublin |
| TOOHEY | Joseph Henry | Private | Royal Dublin Fusiliers | Born Dublin | |
| TOOHEY | Thomas Austin | Private | Royal Dublin Fusiliers | Born Dublin | Resided Manchester |
| TOOLE | John | Private | Royal Inniskilling Fusiliers | Born St. Thomas, Dublin | |
| TOOLE | Patrick | Private | Royal Dublin Fusiliers | Born Dublin | Resided Wicklow |
| TOOMEY | Archibald Roche | Second Lieutenant | 6th Battalion, Leinster Regiment | Native of Dublin | |
| TOOMEY | John | Sergeant | East Lancashire Regiment | Born Dublin | Resided Mount Mellick, Queens, Co. |
| TOPPING | John | Sergeant | Irish Guards | Born Dublin | |
| TORMEY | Thomas | Private | Royal Scots Fusiliers | Born Dublin | |
| TOSDEVIN | William Cecil | Second Lieutenant | 7th Battalion, Northamptonshire Regiment | | |
| TOUHEY | Michael | Sergeant | East Lancashire Regiment | Born Dublin | |
| TOWELL | Patrick | Private | Royal Inniskilling Fusiliers | Born Dublin | |