| Surname | Forename | Rank | Unit | Born | Resided |
| PRICE | Robert | Private | Cheshire Regiment | Born St. Paul's, Dublin | |
| PRINCE | Arthur | Gunner | Royal Horse Artillery and Royal Field Artillery | Born Dublin | |
| PRINGLE | Charles Michael | Wireless Operator | S.S. "Elve" (Liverpool) | Born in Dublin | |
| PRIZEMAN | Frederick Joseph | Private | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| PROSPER LISTON | William | Captain | 5th Battalion, Leinster Regiment | Born at Balbriggan, Co. Dublin | |
| PROTHERO | J W | Unknown | Royal Navy | | |
| PROUDFOOT | Richard | Private | Irish Guards | Born Blanchardstown, Co. Dublin | |
| PROVIS | John | Private | 27th Battalion, Canadian Infantry (Manitoba Regiment) | Born at Upper Norwood, London, England | |
| PRYER | Robert | Private | East Surrey Regiment | Born Dublin, Ireland | |
| PUGH | Christopher | Sergeant | Royal Dublin Fusiliers | Born Dublin | |
| PULLEN | Frederick | Private | Hampshire Regiment | Born Dublin | Resided Aldershot, Hants |
| PULLIN | Edward | Corporal | Corps of Royal Engineers | Birthplace unknown | Resided Dublin |
| PUNTER | Henry | Private | Royal Dublin Fusiliers | Born Dublin | |
| PURCELL | Edward Steward | Private | Machine Gun Corps | Born Dublin | |
| PURCELL | James | Private | Prince Of Wales's Leinster Regiment (Royal Canadians) | Born Dublin | |
| PURCELL | John Patrick | Private | Royal Dublin Fusiliers | Born Dublin | Resided Dublin |
| PURCELL | Joseph | Private | Royal Dublin Fusiliers | Born Dublin | |
| PURCELL | Thomas | Private | Royal Dublin Fusiliers | Born Dublin | |
| PURCELL | William | Sapper | Corps Of Royal Engineers | Born Dublin | |
| PURCELL | John Francis | Private | Royal Irish Regiment | Birthplace unknown | Resided Dublin |
| PURSER | W G | Gunner | Canadian Field Artillery | | |
| PURTELL | John | Private | Royal Dublin Fusiliers | Born Dublin | |
| PYE | Clifford | Private | Prince of Wales's Own (West Yorkshire Regiment) | Born Dublin | |
| QUARRY | Herbert | Lieutenant | F 8th Trench Mortar Battery, Royal Field Artillery | | |
| QUIGLEY | Christopher | Second Lieutenant | 11th Battalion, attached 2nd Battalion, Royal Dublin Fusiliers | | |
| QUIGLEY | Christopher | Corporal | King's Own (Royal Lancaster Regiment) | Born Dublin | |
| QUIGLEY | Daniel | Private | Royal Sussex Regiment | Born Dublin | |
| QUIGLEY | George | Corporal | Royal Inniskilling Fusiliers | Born Dublin | |
| QUIGLEY | John | Driver | Royal Horse Artillery and Royal Field Artillery | Born Dublin | |
| QUIGLEY | William | Private | York And Lancaster Regiment | Born St. James, Dublin | |
| QUIGLEY | William | Sergeant | Royal Dublin Fusiliers | Born Donnybrook, Dublin | Resided Dublin |
| QUIGLEY | William | Private | Royal Irish Regiment | Born Aughrim St., Dublin | |
| QUINLAN | Joseph | Lance Corporal | Prince of Wales's Leinster Regiment (Royal Canadians) | Born Dublin | |
| QUINLAN | Richard | Private | Machine Gun Corps | Born Dublin | |
| QUINLAN | John | Acting Lance Coporal | Corps of Military Police | Born Askeaton | Resided Dublin |
| QUINN | Michael | Petty Officer | H.M.S. "Monmouth" | | |
| QUINN | James | Private | Princess Victoria's (Royal Irish Fusiliers) | Born Dublin | |
| QUINN | James | Lance Corporal | Royal Dublin Fusiliers | Born Dublin | |
| QUINN | John | Private | Irish Guards | Native of Stepaside, Sandyford, Co. Dublin | |
| QUINN | John Joseph | Shoeing Smith. | Royal Horse Artillery and Royal Field Artillery | Born Dublin | |
| QUINN | Michael | Private | Devonshire Regiment | Born Dublin | |
| QUINN | Patrick | Private | South Wales Borderers | Born Dublin, Ireland | |
| QUINN | Patrick | Corporal | Princess Victoria's (Royal Irish Fusiliers) | Born Dublin | |
| QUINN | Patrick Joseph | Private | Manchester Regiment | Born St. Andrew's, Dublin | |
| QUINN | Peter | Driver | Royal Horse Artillery and Royal Field Artillery | Born Dublin | |
| QUINN | Peter | Lance Corporal | Princess Louise's (Argyll & Sutherland Highlanders) | Born St. Michaels, Co. Dublin | Resided Dublin |
| QUINN | Robert | Private | Labour Corps | Born Dublin | |
| QUINN | Robert | Lance Corporal | Manchester Regiment | Born Dublin | Resided Hulme, Manchester |
| QUINN | Thomas | Lance Corporal | Royal Irish Rifles | Born Dublin | |
| QUINN | Timothy | Private | Royal Irish Regiment | Born Dublin | Resided Salford, Lancs |