Name
- L'Institute Géographique Militaire, Belgrade, 20th century1
- Lacam, Benjamin, late Muster-Master at Fort William, Bengal, 1738-18181
- Land Department, Survey Division, Nairobi, Kenya, fl 1924-19281
- Land Survey Department, Japan, ca 1887-1
- Lang, E A, mining engineer, fl 19031
- Lassen, Christian, Orientalist, 1800-18761
- Laurie & Whittle, Publishers and publishing, fl 1794-18121
- Le Mesurier, Frederick Neil, army officer, 1875-19151
- Leake, Francis, naval officer, 1869-19281
- Lee, Kenneth Willoughby, army officer, 1886-19161
- Legh, Frank Bertram, army officer, 1881-19661
- Lesseps, Ferdinand de, Vicomte, 1805-18941
- Leverson, Julian John, army officer, 1853-19411
- Lewis, Ida, 1842-19111
- Lewis, William Hawthorne, 1888-19701
- Lilley, Harry Arthur, army officer, fl 1911-19141
- Lines, William, lithographer, fl 1849-18521
- Lit. A.F. Markova, publisher, St Petersburg, Russia, Late 1890s1
- Livingstone, David, explorer and missionary, 1813-18731
- Llewelyn, army officer, fl 19201