Name
- Pemberton-Leigh, Thomas, Baron Kingsdown1
- Penn, Richard, Agent for Ceylon1
- Pennington, George James, barrister1
- Peragallo, G- B-, of Corfu1
- Pery, Edmund Henry, 1st Earl of Limerick1
- Petersdorff, Charles, barrister1
- Petre, Mary Bridget, widow of Robert Edward, l0th Baron Petre1
- Phillips, Richard, publisher1
- Phipps, Constantine Henry, 1st Marquess of Normanby1
- Pickwood, Mrs1
- Pickworth, W- I-, of London1
- Platt, Thomas Joshua, barrister; Knight 18451
- Pleydell-Bouverie, William, 3rd Earl of Radnor1
- Plunkett, Arthur James, 8th Earl of Fingall1
- Pollock, Jonathan Frederick, 1st Baronet, Lord Chief Baron1
- Ponsonby, Frederick Cavendish, Major-General Hon; GCMG1
- Ponsonby, Richard, Bishop of Killaloe and Kilfenora 1828 and (1831) of Derry1
- Postlethwaite, Richard1
- Pott, Joseph Holden, Archdeacon of London1
- Potter, Samuel T-, Irish lawyer1