Encyclopedias, Almanacs, Transcripts, and Maps
- Lucius Annaeus Seneca
- Lucius Junius Moderatus Columella
- Luddites and Luddism
- Ludvig A. Colding
- Ludwig Eduard Boltzmann
- Ludwig Georg Elias Moses Bieberbach
- Ludwig Mettler Rehn
- Ludwig Otto Hesse
- Ludwig Plate
- Ludwig Prandtl
- Ludwig von Siegen
- Luhmann, Niklas
- Luigi Amedeo Abruzzi
- Luigi Bianchi
- Luigi Ferdinando Marsili
- Luigi Maria D'Albertis
- Luigi Maria D'Albertis Explores Unknown Interior Regions of New Guinea
- Luigi Pernier b
- Luis Vaez de Torres
- Luis Walter Alvarez