Name
- Keymer, S L, Colonel of Alderley Edge2
- Kisch, Cecil Hermann, KCIE2
- Lambart, Frederick Rudolph, 10th Earl of Cavan, Field-Marshal2
- Lambton, Claud, son of George 2nd Earl of Durham2
- Laurvig, Preben Ferdinand, Count, Danish diplomatist, 1872-19462
- Law, Andrew Bonar, businessman and prime minister, 1858-19232
- Lawford, V G, of the Foreign Office2
- League of Nations, 1920-19462
- Leak, J A Trevelyan, Sec League of Nations Union Sussex Federal Council2
- Leggett, Malcolm, of Bournemouth2
- Leishman, James R, of the League of Nations Union Edinburgh Branch2
- Levinson, Salmon Oliver, US lawyer2
- Locock, Guy Harold, of the Foreign Office, afterwards Director Federation of British Industries2
- Loveday, Alexander, economist and international civil servant2
- Lunn, Henry Simpson, MD2
- Lutyens, Robert, architect2
- MacDonald, James Ramsay, Prime Minister, 1866-19372
- MacLeod, A A, National Chairman of the Canadian League against War and Fascism2
- MacPhee, Isabel, Miss Principal of Chelwood Gate School Sydney2
- Macadam, Elizabeth, Miss of the League of Nations Union Westminster Branch2