Name
- Lawson, M. A., Government Botanist, Madras1
- Lawson, William Norton, Secretary of the Geologists' Association1
- Lay, G. Tradescant, writer on China1
- Layard, E. L.1
- Le Moine, James MacPherson, Canadian author1
- Lea, Isaac, American naturalist1
- Leach, William Elford, MD, Assistant Keeper of Natural History, British Museum1
- Lee, Henry, naturalist1
- Lee, John Edward, antiquary1
- Lee, Sarah, Mrs; authoress1
- Leighton, William Allford, botanist1
- Lindberg, Sextus Otto, botanist1
- Lindley, John, botanist and horticulturist, 1799-18651
- Lindsay, Alexander William Crawford, 25th Earl of Crawford and 8th Earl of Balcarres, art historian, 1812-18801
- Lindsay, William Lander, botanist1
- Lindström, Gustaf, palaeontologist1
- Lister, Arthur, FRS, d 19081
- Lister, Joseph Jackson, zoologist1
- Lister, Joseph, 1st Baron Lister, surgeon1
- Livingstone, David, explorer and missionary, 1813-18731