Name
- Pelly, John Henry, 1st Baronet, Governor of the Bank of England2
- Pemberton-Leigh, Thomas, Baron Kingsdown2
- Plunket, William Conyngham, 1st Baron Plunket, Lord Chancellor of Ireland2
- Pollock, Jonathan Frederick, 1st Baronet, Lord Chief Baron2
- Pratt, John Jeffreys, 2nd Earl and 1st Marquess Camden, 1759-18402
- Primrose, Archibald John, 4th Earl of Rosebery2
- Rainy, Harry, Professor of Forensic Medicine at Glasgow2
- Ramsay, James Andrew, 1st Marquess of Dalhousie, statesman and colonial administrator, 1812-18602
- Ross, Horatio, Captain; MP2
- Russell, John, 1st Earl Russell, Prime Minister, 1792-18782
- Ryder, Dudley, Viscount Sandon, 2nd Earl of Harrowby2
- Savage, Robert Chapman, Vicar of Tamworth, 1806-18712
- Shaw, Frederick, 3rd Baronet 1869, Recorder of Dublin2
- Shell, Richard Lalor, MP; QC2
- Sinclair, George, 2nd Baronet, of Ulbster2
- Smirk, Robert, RA; architect2
- Somerset, Fitzroy James Henry, 1st Baron Raglan, Field-Marshal2
- Stanhope, Philip Henry, Viscount Mahon, 5th Earl Stanhope2
- Staunton, George Thomas, 2nd Baronet, MP2
- Synod of Dumfries2