Name
- Northcote, Cecilia Frances, wife of Stafford Henry Northcote 1st Earl of Iddesleigh, 1823-19102
- Northcote, Stafford Henry, 8th Baronet, 1st Earl of Iddesleigh, politician, 1818-18872
- Onslow, William Hillier, 4th Earl of Onslow, politician and colonial governor, 1853-19112
- Owen, Richard, KCB, naturalist2
- Passow, Athenaea, German translator2
- Pearson, George Falconer, Colonel Indian Inspector-General of Forests2
- Peel, Arthur George Villiers2
- Pelham, Irene, née Lubbock wife of Sir E H Pelham KCB2
- Penck, Albrecht, geographer2
- Pengelly, William, FRS, geologist2
- Percival, John, Bishop of Hereford2
- Percy, Algernon George, Baron Lovaine, 6th Duke of Northumberland2
- Poole, Reginald Stuart, of the British Museum, Keeper of Coins and Medals2
- Poulson, Edward Bagnall, zoologist2
- Poynter, Edward John, 1st Baronet, PRA2
- Prescott, Richard Melling, Town Clerk of Nelson Lancashire2
- Pye-Smith, Philip Henry, MD, FRS2
- Quatrefages de Bréau, Jean Louis Armand de, French naturalist2
- Ramanathan, Ponnambalam, Solicitor-General of Ceylon2
- Ramsay, William G, FRS, chemist2