Name
- Kenny, Charles J, secretary of the James Connolly Labour College1
- Kerr, Philip Henry, 11th Marquess of Lothian1
- Kinsey, Sarah A, wife of Scott's and Shackleton's agent in Christchurch New Zealand1
- Kyllmann, Otto, of Constable Archibald & Co publishers1
- Landau, Rom, author1
- Laurie, T Werner, publisher1
- Lautre?, Gladys, of Cape Province?1
- Lawrence, Sarah, mother of T E Lawrence1
- Leonard, Joseph S, Father CM, of St Mary's Training College Hammersmith1
- Lewis, Cecil Arthur, MC, author and film director1
- Lodge, Oliver Joseph, FRS1
- Loraine, Robert, MC, actor and aviator1
- Lugné, Aurélien-François, director of the Théâtre des Oeuvres Paris al Lugné-Poë1
- Lytton, Judith Anne Dorothea, 16th Baroness Wentworth, horse breeder and real tennis player, 1873-19571
- MacLeod, Josephine1
- Mackinder, Halford John, PC, MP1
- Mactaggart, C S, Secretary London School of Economics1
- Mahaffy, John Pentland, Provost of Trinity College Dublin1
- Mansel, John Delalynde, Lieutenant-Colonel JP of Smedmore Dorset1
- Mansfield, Beatrice, née Cameron actress, wife of Richard Mansfield1