Name
- Mackenzie, Francis Humberston, Baron Mackenzie of Kintail, Lord Seaforth1
- Mackenzie, Kenneth, Earl of Seaforth1
- Magirus, Joannes, MD1
- Main, James L.1
- Maltese, Giacomo, of Rome1
- Manger, Daniel, of Folkestone1
- Martyn, Charles Fuller, of Calcutta1
- Matson, Henry, wine merchant, of Dover1
- Maty, Matthew, Dr Principal Librarian British Museum1
- Maxwell, Edward, of Calcutta1
- Mazzarella, Francesco1
- Meyrick, John, of Add MS 420711
- Minchin, Humphrey, Clerk of the Ordnance 17831
- Moccia, Paolo1
- Mookerjea, Darychwin, of Calcutta1
- Morelli, Francesco, printer, of Naples1
- Murray, John, 1st Baronet 1795, Colonel; afterwards Macgregor-Murray; Military Auditor-General of Bengal1
- Murray, John, Ambassador to Turkey (1765)1
- Murray, Peter1
- Mylne, Robert, architect and engineer1