- Pack-Beresford, Denis R.
- Pain, Brig.-Gen. Sir William Hacket-
- Pakenham, Capt. Hon Edward Michael
- Pakenham, Hon. Francis Aungier
- Pakenham, Col. Hercules Arthur
- Pakenham-Mahon, Capt. Henry
- Palmer, Charles Colley
- Parke, James Cecil
- Parker, Capt. Reginald Francis
- Parker, Col. Robert Gabbett
- Parker-Hutchinson, Standish Grady John
- Parnell, John Howard
- Parsons, The Hon. Sir Charles Algernon
- Parsons, Lt.-Gen. Sir Lawrence Worthington
- Parsons, Richard
- Patterson, Dr. Annie W.
- Paul, Rev. Professor F. J.
- Paul, Lt.-Col. James Robert Alexander Hunter
- Paul, Sir Robert Joshua
- Peacocke, Right Rev. Joseph Irvine
- Peacocke, Col. Thomas George
- Peacocke, Colonel William
- Pearson, Charles Yelverton
- Peebles, Aubrey William
- Pennefather, de Fonblanque
- Penrose, Brigadier-General Cooper
- Penrose, James Edward
- Penrose, William Robert
- Pepper, Col. Charles
- Perceval, Major Alexander Ascelin Charles Philip Spencer
- Perceval, Brig.-Gen. Claude John
- Perceval, Major-Gen. Sir Edward Maxwell
- Perceval-Maxwell, Lt.-Col. The Right Hon. Robert David
- Percy, Sir James Campbell
- Persse, Major William Arthur
- Perry, Major William
- Pery, Hon. Edmund Colquhoun
- Pery, Hon. Harry de Vere
- Peyton, Thomas Henry
- Phelan, Nicholas Francis
- Phelps, John Vandeleur
- Phibbs, Thomas Randle
- Pierse, Rev. Garrett
- Pike, Joseph
- Pike, Major-Gen. Sir William Watson
- Pile, Sir Thomas Devereux
- Pilkington, Mrs. Ellice
- Pilson, Major Arthur Forde
- Pim, Frederic William
- Pim, Herbert Moore
- Pim, The Right Hon. Jonathan
- Pimlott, James
- Pirrie, Viscount
- Place, Major Charles Godfrey Morris
- Place, Thomas Dumayne
- Plunket, Hon. Brinsley Sheridan Bushe
- Plunket, Hon. Denis Kiwa
- Plunket, Baron
- Plunket, Baroness
- Plunkett, George Noble, Count
- Plunkett Hon. Gerald William Desmond
- Plunket, Hon. Henry Patrick Coghill
- Plunkett, Rt. Hon. Sir Horace Curzon
- Plunkett, Hon. Otway Randal Percival Oliver
- Plunkett, Hon. Randal Arthur Henry
- Plunkett, Hon. Patrick Ralph Oliver
- Plunkett, Thomas Luke
- Poë, Capt. George Leslie
- Poë, Capt. James Hill
- Poë, James Purefoy
- Poë, Lt.-Col. Sir William Hutcheson
- Pollock, Right Hon. Hugh Macdowell
- Pollock, Major Allan Bingham
- Polson, Col. Sir Thomas Andrew
- Pomeroy, John Arthur
- Ponsonby, Major Edward Frederick Talbot-
- Ponsonby, Thos. Brabazon
- Poore, Brig.-General Robert Montagu
- Pope-Hennessy, Colonel Ladislaus Herbert Richard
- Portarlington, Earl of
- Porte, Gabriel William Church
- Porter, Edward Guss
- Porter, John Porter
- Porter, Sir John Scott Horsbrugh-
- Porter, Sir Leslie Alexander Selim
- Porter, Major-General Sir Robert
- Powell, The Right Hon. John Blake
- Powell, Caroline A.
- Power, Sir George
- Power Lady Gertrude Frances
- Power, Lady Frances Emma
- Power, Hubert
- Power, John Joseph O'Neill
- Power, Rev. Patrick
- Power, Sir Samuel Murray
- Power, Sir Thomas Talbot
- Powerscourt, Viscount
- Praeger, Robert Lloyd
- Pratt, Joseph
- Prendergast, Vice-Admiral Sir Robert (John)
- Preston, Major Arthur John
- Preston, Elystan George Crompton
- Preston, Capt. The Hon. Hubert Anthony John
- Preston, Lt.-Col. The Hon. Richard Martin Peter
- Price, Alfred Dickinson
- Price, Major James Nugent Blackwood
- Pringle, Seton Sidney
- Prior Wandesforde, Richard Henry
- Prittie, Hon. Henry Cornelius O'Callaghan
- Purcell, Pierce Francis
- Purcell, Sir John
- Purcell, Major Raymond John
- Purdon-Winter, Col. Edward Winter
- Purefoy, Wilfred Bagwell
- Purser, Louis Claude
- Purser, John Mallet
- Purser, Olive
