Name
- Millett, Maude, actress1
- Milnes, Robert Offley Ashburton, 1st Marquess of Crewe, politician, 1858-19451
- Minetta Lane Theatre, New York1
- Mitchell, Peter Chalmers, secretary to the Zoological Society1
- Monaco1
- Monckton, Maria Louisa, actress1
- Monet, Claude, painter1
- Montefiore, Leonard, author and philanthropist1
- Moore, Henriette Sturge, theatre designer and interior decorator, daughter of Thomas Sturge Moore, 1907-19951
- Moore, Marie Sturge, wife of T Sturge Moore1
- Morgan, Evan Frederic, 2nd Viscount Tredegar1
- Morrell, Philip Edward, MP, JP1
- Morris, William, designer, author, and visionary socialist, 1834-18961
- Morrison, Arthur George, writer and novelist1
- Morse, —, Colonel aide to Lucas D'Oyly Carte1
- Mort, Macaulay, friend of Robert Baldwin Ross1
- Munro, Hugh Hector, alias `Saki'1
- Murray, John, publishers, 1768-20131
- Murray, Thomas Douglas, barrister friend of Oscar Wilde1
- Mušek, Karel, actor and translator1