Name
- Moult, Thomas, poet and critic1
- Munro, Hugh Hector, alias `Saki'1
- Munthe, Axel Martin Fredrik, Dr. author1
- Murray, Katharine Marjory, Duchess of Atholl, nee Ramsay; wife of John 8th Duke of Atholl, 1874-19601
- Murry, John Middleton, literary critic1
- Murry, Kathleen Mansfield, née Beauchamp writer, called 'Katherine Mansfield'1
- Myres, John Linton1
- Namier, Lewis Bernstein, historian1
- Nash, Paul, painter, 1889-19461
- Neill, Alexander Sutherland, founder of Summerhill School1
- Nicholson, Arthur Pole, author1
- Noble, John Charles Bristow, miscellaneous author1
- Noel, Conrad le Despenser Roden, Vicar of Thaxted, writer1
- Novello, Ivor, alias David Ivor Davies; composer, actor and playwright, 1893-19511
- O'Brien, Kathleen Mary Louise, author 'Kate O'Brien', 1897-19741
- O'Casey, Sean, dramatist and author1
- O'Neill, Eugene Gladstone, playwright1
- O'Riordan, Conal Holmes O'Connell, alias 'F Norreys Connell', novelist and playwright1
- Obermer, Seymour, alias `Austin Page', dramatist1
- Oliver, George, alias `Oliver Onions', novelist1