Name
- Longhi, Roberto, of Rome University1
- Lowell, James Russell, American author and diplomatist1
- Lubbock, John, 1st Baron Avebury, banker, politician, and scientific writer, 1834-19131
- Luther, Hans, German Chancellor1
- Lutz, F. A., art dealer, of Berlin1
- Lysons, Daniel, General; GCB1
- Löbe, Paul, President of the Reichstag1
- MacCarthy, Charles Otto Desmond, literary critic and writer, 1877-19521
- Macgregor, Evan, GCB; of Add MS 489371
- Maclagan, Eric Robert Dalrymple, Knight, Director of the Victoria and Albert Museum, 1879-19511
- Macmillan, George Augustin, publisher, 1855-19361
- Mainzer, F., physician, of Berlin1
- Malcolm, Neill, Major-General KCB1
- Malet, Edward Baldwin, KCB, 4th Baronet , diplomatist1
- Manners, Diana Olivia Winifred Maud, afterwards Cooper; wife (1919) of Alfred, 1st Viscount Norwich 19521
- Manners, Marion Margaret Violet, wife of Henry, 8th Duke of Rutland1
- Manson, James Bolivar, Director Tate Gallery1
- Marriott, William Thackeray, Judge-Advocate-General1
- Marshall, Thomas Outram, Reverend; of Woking1
- Marx, Wilhelm, German Chancellor1