Name
- North, Anne, née Speke, wife of Frederick North, 2nd Earl of Guilford, 1740-17971
- Northcote, James, RA1
- Norton, John1
- O'Connor, Roger, Irish nationalist1
- O'Connor, Thomas Power, MP, journalist1
- Oakeley, Frederick, Reverend historian1
- Ollivant, Alfred, Bishop of Llandaff1
- Onslow, Arthur, Speaker of the House of Commons1
- Orde, Thomas, afterwards Orde-Powlett 1st Baron Bolton1
- Palm, Carl Joseph von, Count Imperial ambassador in London1
- Peacock, Ralph, artist1
- Pellew, Edward, 1st Viscount Exmouth1
- Percy, Hugh, 3rd Duke of Northumberland, politician and landowner, 1785-18471
- Pering, John, Reverend1
- Perry, James, journalist1
- Philip IV, of Spain, 1605-16651
- Phillip, John, RA1
- Phillips, Henry Wyndham, portrait-painter1
- Phipps, Charles Beaumont, Colonel KCB, Keeper of the Queen's Purse1
- Phipps, Constantine Henry, 2nd Earl of Mulgrave1