Name
- Martyn, Henry, missionary1
- Mary II, Queen of Great Britain and Ireland, 1662-16941
- Mary, 6th Earl of Harewood, Princess Royal, wife of Henry1
- Mary, Queen Consort of King George V, 1867-19531
- Matheson, Percy Ewing, classical scholar1
- Maude, Cyril, actor-manager, 1862-19511
- Maurier, Gerald Hubert Edward Busson, Knight, actor and theatre manager, 1873-19341
- Mazzini, Giuseppe, Italian patriot, 1805-18721
- McCarthy, Justin, MP1
- McCurdy, Charles Albert, PC, MP1
- McKenna, Reginald, PC, MP1
- McMahon, Arthur Henry, Knight, army officer, 1862-19491
- Melcy, Gerard de1
- Mendelssohn-Bartholdy, Jakob Ludwig Felix, composer, 1809-1847, http://isni.org/isni/000000...1
- Merriman, John1
- Methuen, Paul, 3rd Baron Methuen, army officer, 1845-19321
- Mildmay, Walter, administrator and founder of Emmanuel College, Cambridge, ?1520-15891
- Mill, John Stuart, philosopher1
- Millais, John Everett, 1st Baronet, painter, 1829-18961
- Milley, J L, American minister in London1