Name
- Parnell, John, 2nd Baronet, MP for Queen's County; afterwards Irish Chancellor of the Exchequer1
- Partington, Henry, Collector of Customs at Shoreham1
- Paterson, James, Clerk of the Crown1
- Pelham, Frances, daughter of H Pelham, Prime Minister1
- Pelham, Jane Cressett, wife of Henry Cressett Pelham, of Crowhurst1
- Perceval, Spencer, Prime Minister of the United Kingdom, 1762-18121
- Pery, Edmund Henry, 1st Earl of Limerick1
- Philby, George1
- Phipps, Henry, 1st Earl of Mulgrave1
- Pictet, Mare Auguste, Professor of Philosophy at Geneva1
- Pindar, George1
- Pitt, William, Prime Minister, called 'the younger', 1759-18061
- Pollock, William, Chief Clerk, Home Office1
- Pons, Antonio1
- Poore, Edward, ? of Rushall1
- Poyntz, William Deane, British Chargé d'Affaires at Turin1
- Poyntz, William Stephen, MP for St. Albans1
- Pritchard, John, of Add MS 331091
- Proby, John Joshua, 1st Earl of Carysfort1
- Pye, Aleyne Hampden, Captain1