- L ... La Farge, Oliver Hazard Perry
- La Farina, Giuseppe ... La Piedad de Cabadas
- La Place Ducale ... Lab Schools
- lab-on-chip ... Labour and the New Social Order
- labour arbitration ... lac insect
- Lac Long Quan ... Lacplesis
- Lacq ... Lade, battle of
- LADEE ... Lady Marmalade
- Lady of Elche, The ... Lafontaine, Oskar
- LaFontaine, Pat ... Lagrangian
- Lagrangian equilibrium point ... laity
- Laius ... Lake, Gerard Lake, 1st Viscount
- Lake, Kirsopp ... Lalor, Peter
- Laloux, Victor ... Lambert, François
- Lambert, Gerard Barnes ... Lamium
- lamivudine ... Lan Tau Island
- Lan Ts’ai-ho ... Land and Water Conservation Fund
- Land Apportionment Act ... Länder
- Lander ... landscape painting
- Landscape with a Rainbow ... Lang, William Henry
- Langak, Lake ... Langtry, Lillie
- language ... Lantana
- Lantana camara ... Laos
- Laos gymnure ... Lara, Guillermo Rodríguez
- Larache ... Larissa
- Larissa ... Larvacea
- larvacean ... Lasher
- Lāshīn, Maḥmūd Ṭāhir ... Last Days of John Lennon, The
- Last Days of Louisiana Red, The ... Last Sunset, The
- Last Supper ... Late Stone Age
- Late Victorian Holocausts ... Latharna
- lathe ... Latrobe, Benjamin Henry
- Latrobe, Mount ... Laughing Boy
- Laughing Buddha ... Laurentian Region
- Laurentian schism ... Laveaux, Étienne
- Laveaux, Marie ... law, philosophy of
- law, pure theory of ... Lawson cypress
- Lawson, Dame Lesley ... layup
- Laz ... Le Blond, Jean-Baptiste-Alexandre
- Le Bon, Gustave ... Le Tellier, Michel
- Le Thai To ... leadoff hitter
- Leadon, Bernie ... lean manufacturing
- lean oil ... Leaves from the Notebook of a Tamed Cynic
- Leaves of Grass ... Lecanorales
- Lecanoromycetes ... ledger
- ledger ... Lee, Tsung-Dao
- Lee, Vernon ... Leftist Writers, League of
- Leftovers, The ... Légendes épiques, Les
- Legendre, Adrien-Marie ... Leguía y Salcedo, Augusto Bernardino
- legume ... Leichhardt, Ludwig
- Leick’s plates ... Leizhou Peninsula
- Leja, Al- ... lemon basil
- lemon bee balm ... Leningrad Theatre of the Estrada and the Miniature
- Leningrad, Siege of ... Leo
- leo ... Leonardo da Vinci Museum of Science and Technology
- Leonardo da Vinci’s parachute ... Leopold of Anhalt-Dessau
- Leopold of Hohenzollern-Sigmaringen, Prince ... leprosy
- Lepsi River ... Leroux, Etienne
- Leroux, Gaston ... lesser bandicoot rat
- Lesser Bear ... Let Him Go
- Let History Judge ... Letter to Monsieur d’Alembert on the Theatre
- Letter to Sister Benedicta ... Lettres d’un habitant de Genève à ses contemporains
- Lettres de Dupuis et Cotonet ... Leutze, Emanuel Gottlieb
- Leuven ... Levin, Joseph
- Levin, Konstantine ... Lewes
- Lewes River ... Lewisia
- Lewisia rediviva ... Leyrens, Jan
- Leys, Hendrik ... Li Jiancheng
- Li Jie ... Li-Fournier Convention
- Li-hsien Chiang ... Libby, Willard Frank
- libel ... Liberal Party
- Liberal Party ... Liberty Party
- Liberty Records ... Licancábur, Mount
- Licata ... Lieber, Stanley Martin
- Lieber, Thomas ... life
- Life ... Life of Dante
- Life of David Hume, Esquire, Written by Himself, The ... life-span psychology
- life-support system ... light industry
- light infantry ... lightship
- lightship weight ... Lili
- Lili Marleen ... Limacacea
- Limacidae ... limitations, statute of
- limited effects paradigm ... Lin Qinnan
- Lin Shaoqiong ... Lindbergh, Charles
- Lindbergh, Charles A. ... line squall
- Line, bar, and candlestick charts: Three types technical analysts use ... Ling Lun
- ling nut ... Linklater, Eric Robert
- Linklater, Richard ... Lion and the Jewel, The
- Lion and the Throne, The ... Lipizzaner
- Lipkin, Israel ... liquid propellant
- liquid scintillator ... Lissajous figure
- Lissamphibia ... list of cities and towns in Peru
- list of cities and towns in Saudi Arabia ... list of lichens
- list of literary prizes ... list of procyonids
- list of prominent families ... Lit, Le
- Litai ... lithium-ion drifting
- lithium-manganese dioxide cell ... Little Bighorn, Battle of the
- Little Bit Longer, A ... Little Image
- Little Jazz ... Little Sister
- Little Sister, The ... Liu Buoming
- Liu Che ... Live Free or Die Hard
- Live in London ... Living Church movement
- Living Corpse, The ... Livyatan
- Liwan ... Lloq’e Yupanki
- Lloque Yupanqui ... Loach, Kenneth
- Load ... Lobujya River
- lobular carcinoma ... lock-and-key hypothesis
- Locke ... lodicule
- Lodoicea maldivica ... logic of consequences
- logic of industrialization ... lohan
- Lōhāwar ... Lombard
- Lombard kingdom ... London Group
- London Has Fallen ... Lonergan, Bernard
- Lonergan, Kenneth ... Long, Earl K.
- Long, Edward ... long-wattled umbrellabird
- long-whiskered catfish ... Longmenshan Fault
- Longmian jushi ... Look Back in Anger
- Look Back in Anger ... López Mateos, Adolfo
- López Michelsen, Alfonso ... Lord Cawdor’s Act
- lord chamberlain ... Lorenzetti, Ambrogio
- Lorenzetti, Pietro ... Los Angeles Dodgers
- Los Angeles Express ... Lost in Yonkers
- Lost in Yonkers ... Lottin, Kylian Mbappé
- lotto ... Louis le Grand
- Louis le Grand Monarque ... Louisiana Hayride
- Louisiana Leper Home ... Love and Responsibility
- Love and Summer ... Love’s Last Shift; or, The Fool in Fashion
- Love’s Mistress ... Loving Pablo
- Loving Them Both: A Study of Bisexuality and Bisexuals ... Lowell, A. Lawrence
- Lowell, Abbott Lawrence ... Lowine, John
- lowland bongo ... LRV
- LS coupling ... luba
- Luba ... Lucas, Vrain-Denis
- Lucasfilm, Ltd. ... Luck of the Draw
- Luck of the Irish, The ... Ludus septem sapientum
- Ludvigsbakke ... Lugo, Fernando
- Lugoj ... Lule, Yusufu
- Luleå ... Luna
- Luna 25 ... lung plague
- lung squeeze ... Luppino family
- Lupsuk Peak ... luteal phase
- luteal stage ... lux
- Lux ... Lyakhov, Vladimir A.
- Lyakhovsky Islands ... lygaeid bug
- Lygaeidae ... Lynds, Elma
- Lyndsay, Sir David ... Lysander
- Lysander ... LZW