L (disambiguation)
- ATC code L
- Android L
- Angular momentum
- Avogadro constant
- Big L (disambiguation)
- Brazilian advisory rating system
- Canon L lens
- Carl Linnaeus
- Chicago "L"
- El (disambiguation)
- Haplogroup L (Y-DNA)
- Horse length
- Inductance
- L
- L (Ayumi Hamasaki EP)
- L (Candy Lo EP)
- L (Death Note)
- L (French singer)
- L (Los Angeles Railway)
- L (Moe album)
- L (New York City Subway service)
- L (SEPTA Metro)
- L (Steve Hillage album)
- L (complexity)
- L (entertainer)
- L (film)
- L (novel)
- L Line (Los Angeles Metro)
- L Taraval
- L band (disambiguation)
- L class (disambiguation)
- L postcode area
- L – A Mathemagical Adventure
- L-function
- L-notation
- L-plate
- L. Inc.
- Lagrangian (disambiguation)
- Langmuir (unit)
- Laplace transform
- Latent heat
- Leaf (books)
- Left (direction)
- Leucine
- Levorotation
- Lewisite
- Liberals (Sweden)
- Lira
- List of compositions by Claude Debussy by Lesure number
- List of compositions by Franz Benda
- List of military time zones
- Livre (disambiguation)
- Loews Corporation
- Loser (hand gesture)
- Low-pressure area
- Lp space
- Lucius (praenomen)
- Luminosity
- Maizuru Line
- Mean free path
- Nissan L engine
- Pound (currency)
- Roman numeral
- Scawfell Island
- Sequence space
- The Rescue (Doctor Who)
- Traktor (song)
- Transilien Paris-Saint-Lazare
- Uno Line
- Vetus Latina
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