Name
- Ponsonby, Frederick1
- Ponsonby, John William, 4th Earl of Bessborough, politician and statesman, 1781-18471
- Ponsonby, William Francis Spencer, 1st Baron de Mauley 18381
- Pope, J- H-1
- Portman, Edward Berkeley, Baron Portman, Viscount Portman 18731
- Postans, Thomas, Captain Bombay Army, Assistant Political Agent Sind1
- Potter, Richard, of Add MS 364681
- Potters, Thomas1
- Pottinger, Henry, 1st Baronet, army officer and colonial governor, 1789-18561
- Pottinger, Thomas, of Add MS 364701
- Powlett, Caroline, wife of William John Frederick, 3rd Duke of Cleveland1
- Prendergast, Jeffery, Major-General1
- Prendergast, Michael George, MP1
- Prestwich, Joseph, FRS1
- Prideaux, Walter, Secretary of the Goldsmiths' Company1
- Pringle, Thomas, of Cape Colony1
- Prout, Thomas, of Add MS 364571
- Randolph, Francis, Reverend1
- Ranghiasci - Brancaleone, Amelia, Contessa1
- Ranghiasci-Brancaleone, Francesco, Conte1