Encyclopedias, Almanacs, Transcripts, and Maps
- Lueger, Karl
- Lugard, Frederick John Dealtry
- Luigi Carlo Zanobi Salvatore Maria Cherubini
- Luigi Rossi
- Luis Milán
- Luisa Capetillo
- Luisa Valenzuela
- Luiz Carlos Prestes
- Lukács, György (1885–1971)
- Lukashenko, Alexander Grigorievich
- Lukasiewicz, Ignacy
- Lukyanov, Anatoly Ivanovich
- Lula da Silva, Luiz Inácio
- Lumber and Timber Industry
- Lumière, Auguste and Louis
- Lumumba, Patrice (1925–1961)
- Lunacharsky, Anatoly Vasilievich
- Luperón, Gregorio
- Luther (Lou) McKinley Stovall
- Luxemburg, Rosa (1870–1919)