Name
- Melville, J.1
- Mesemacre de Lardenois-de-Ville, Joseph, Baron1
- Mills, George, of the Diplomatic Service; of Add MS 430741
- Molesworth, John Edward Nassau, Vicar of Rochdale1
- Morier, John Philip, diplomat, 1778-18531
- Murdoch, John, RC Bishop of Castabala; Vicar-Apostolic1
- Mure, William, MP; classical scholar1
- Murphy, Miletius, RC Bishop of Ferns1
- Murphy, Timothy, RC Bishop of Cloyne1
- Napier, Commodore Sir Charles, KCB; Admiral 18581
- Napoleon I, Emperor of the French, 1769-18211
- Navy of France1
- Neipperg, Adam Albert, Count, Austrian general1
- Nicholas I, of Russia1
- Nugent, Lavall, Count Nugent, Austrian Field-Marshal 18491
- O'Donnell, Lewis, RC Bishop of Galway1
- Ogilvie, George, MD; lecturer in Medicine at Marischal College, Aberdeen1
- Ordnance Office1
- Osborne, Ralph Bernal, MP, Secretary of the Admiralty1
- Oswald, John, Colonel; General 1837; GCB 1824; GCMG 18381