Name
- Mackenzie, James George, Commander; RN1
- Magenis, Arthur Charles, Secretary to the Lord Lieutenant of Ireland; GCB 18661
- Mahmud Naji, Governor of Beirut1
- Mansel, Robert Christopher, Colonel; KH; Deputy Quartermaster-General in Ireland1
- March, F- E-, of the Ordnance1
- Martin, William, Surgeon, RN1
- Maund, W- Herbert1
- Maunsell, Robert, Captain; RN; CB; Commissioner of Greenwich Hospital1
- McAdam, David, Captain; Royal marines1
- McArthur, Dr; formerly of the Royal Naval Hospital, Barbados1
- McCarthy, Joanna1
- Meagher, Jeremiah, Vice-Consul at Lisbon1
- Mendizabal, Juan Alvarez y, Spanish statesman1
- Mendonça Rolim de Moura Barreto, Nuno José Severo, Marquês de Loulé1
- Michele, Charles Eastland, Consul at St. Petersburg1
- Miller, Joseph, of Add MS 400421
- Miller, Thomas W-, engineer, Devonport dockyard1
- Mills, William, Carpenter, RN1
- Minhinnick, William B-, Chief Engineer, RN1
- Moita, Joao Antonio da, Governor of Ourem, in Portugal1