Name
- Mestral, Armand François Louis, Sieur de St Saphorin1
- Monck, Elizabeth Araminta, née Gore; widow of H Monck1
- Montfrault, Lieutenant-General; commander of Venice1
- Montjustin, Guillaume Catherine Judith, Vicomte, French royalist1
- Montresor, Henry, Captain; RN1
- Moore, Francis, Envoy to Switzerland1
- Moore, John, Lieutenant-General KB1
- Morier, David Richard, diplomat, 1784-18771
- Morier, Isaac, merchant and diplomat, 1750-18171
- Morier, James Justinian, diplomat and novelist, 1782-18491
- Morier, John Philip, diplomat, 1778-18531
- Müller von Friedberg, Karl Franz Alois Matthias, Swiss statesman1
- Müller von und zu Mühleg, Ferdinand, Baron, councillor of Prince-Abbot of St Gall1
- Narbonne Fritzelar, Comte, at Palermo1
- Nesselrode1
- Nicholas, Edward, Vice-Consul at Hamburg1
- Nicolas, Felix1
- Noel-Hill, William, 3rd Baron Berwick, formerly Hill1
- Nompère de Champagny, Jean Baptiste, Duc de Cadore1
- North, Hoare, Nanson and Simpson, grocers, London1