Name
- Nugent, Nicholas, Baronet1
- O'Beirne, Thomas Lewis, Bishop of Meath1
- O'Donoghue, Daniel, Lieutenant1
- O'Hara, Charles, General Governor of Gibraltar1
- Orde-Powlett, Thomas, 1st Baron Bolton1
- Osgoode, William, Cheif Justice of Quebec1
- Pallu du Parc, Chev. de, commandant en chefdans le départment de la Vienne1
- Paoli, Pasquale, General; President of Corsica1
- Parker, Peter, Baronet, Admiral; of Add MS 378771
- Parker, Thomas, of Add MS 378761
- Partridge, Henry, solicitor1
- Paterson, John, schoolmaster of Cleist, near Kinross1
- Patten, Charles1
- Paul I, Emperor of Russia1
- Pearce, William, correspondent of William Windham, fl 18021
- Pelham, Thomas, Baron Pelham, 2nd Earl of Chichester1
- Pellew, S-, Collector of Customs at Falmouth1
- Perceval, Spencer, Prime Minister of the United Kingdom, 1762-18121
- Percy, Thomas, writer and Bishop of Dromore, 1729-18111
- Petiet, Claude, French Minister of War, and Envoy to Milan1