Encyclopedias, Almanacs, Transcripts, and Maps
- Luitzen Egbertus Jan Brouwer
- Luk, Charles (Lu K'uan Yü) (1898-?)
- Lumieres dan la Nuit
- Luminescent Bacteria
- Luminol
- Luminous Bodies
- Luminous Phenomena
- Lungless Salamanders: Plethodontidae
- Lusus Naturae
- Luther Pfahler Eisenhart
- Lutoslawski, Wincenty (1863-1954)
- Lychnomancy
- Lycophytes
- Lycophytes
- Lycopodiidae
- Lynn Andrews Center for Sacred Arts & Training
- Lynn, Thomas (ca. 1928)
- Lyotard, Jean-François
- Lyrebirds: Menuridae
- Lysenko Case