Name
- King, Edward Durnford, Vice-Admiral; KCH1
- King, William, engineer, RN1
- Lamont, James1
- Langley, John H-, Chief Engineer, RN1
- Lapa, José Joaquim Januario, Barao, afterwards Visconde, de Villa Nova d'Ourem1
- Laurencin, Louis Amable, Captain; of the French Navy1
- Lawrence, John, Captain; RN1
- Leyburn, William, of the Admiralty1
- Lhuys, Édouard, diplomat and statesman, 1805-18811
- Little, Alexander, Commander; RN1
- Little, Simon Ridley, Lieutenant; Royal Marines1
- Loftus, Augustus William Frederick Spencer, GCB, colonial governor1
- Loney, Robert, Paymaster, RN1
- Loring, Elizabeth1
- Lousada, Francis B., Marquis de Lousada de San Miniato 18461
- Low, James, Surgeon, RN1
- Lowder, Samuel Netterville, Lieutenant; Royal Marines1
- Maberly, William Leader, Lieutenant-Colonel Sec GPO1
- Macdonough, Frederick George, Captain; of the Portugese Regency fleet1
- Mackay, George, Surgeon, RN1