Name
- Moore, Daniel, astronomer2
- Moreau, César, Director of the French Statistical Society2
- Morgan, William, actuary2
- Mossotti, Ottaviano Fabrizio, astronomer2
- Murray, Anne Elizabeth Cholmley, widow of Sir John Murray of Dunerne, 8th Baronet2
- Musgrave, John, of Tourin2
- Musgrave, Thomas, Archbishop of York2
- Musurus, Constantin, Turkish Ambassador in London2
- Mylne, William Chadwell, engineer2
- Nasmyth, James, engineer2
- Nicholls, George, of Add MS 371922
- Nugent, George Thomas John, Marquess of Westmeath2
- Oersted, Hans Christian, Professor2
- Ord, William Henry, MP2
- Parker, Theodore, Reverend; minister of West Roxbury, USA, 1810-18602
- Payne, Sarah, of Add MS 371982
- Peel, Robert, 2nd Baronet, Prime Minister, 1788-18502
- Pellion di Persano, Carlo, Conte2
- Penn, Richard, FRS2
- Percy, Algernon, Baron Prudhoe, 4th Duke of Northumberland2