Name
- Mackay, Charles, poet and songwriter1
- Maclaren, Charles, of Add MS 285111
- Macleod, Norman, DD1
- Maclise, Daniel, alias 'Alfred Croquis', RA1
- Macready, William Charles, actor1
- Madden, Frederic, Knight, Keeper of Manuscripts, British Museum, 1801-18731
- Magnan, Pierre Bernard, Marshal of France1
- Marochetti, Charles, Baron, Sculptor1
- Marshall, William Calder, sculptor1
- Marston, John Westland, dramatic poet1
- Martineau, Harriett1
- Martius, Carl Friedrich Philipp, Dean of Munich University, and President of the Botanical Society of Ratisbon, 1794-18681
- Masson, David1
- Maule, Fox, 11th Earl of Dalhousie, 2nd Baron Panmure, afterwards Maule-Ramsay, army officer and politician, 1801-18741
- Maurice, John Frederick Denison, author and theologian1
- Maury, Matthew Fontaine, Astronomer1
- Mayhew, Henry, of Add MS 285111
- McClintock, Francis Leopold, Admiral KCB1
- McCullock, James Robert1
- McNeill, Hugh, Dean of Ripon1