Name
- Pery, Edmund Henry, 1st Earl of Limerick1
- Peter III, of Russia1
- Pettiward, R-1
- Petty, Diana Amelia1
- Pierrepont, Elizabeth, widow of Evelyn, 2nd Duke of Kingston1
- Piozzi, Hester Lynch, wife of Gabriel Piozzi1
- Pitt, Thomas, of Add MS 355321
- Pitt, William, 1st Earl of Chatham, Prime Minister, called 'the elder', 1708-17781
- Plata, Mario, Spanish Lieutenant of foot1
- Plunkett, Arthur James, 8th Earl of Fingall1
- Podstatzky-Lichtenstein, Ludwig, Count1
- Pole-Carew, Reginald, Major-General KCB1
- Ponsonby, Frederick, 3rd Earl of Bessborough1
- Pott, Percival, surgeon1
- Powlett, C- I-1
- Prevost de Bessinge, Anne, widow of General Augustine Prevost1
- Prevost de Bessinge, Augustine, Lieutenant-General1
- Pringle, Andrew, Solicitor-General for Scotland and (1759) Lord Alemoor1
- Pringle, James, 4th Baronet1
- Pringle, M-1