LCI
- ICI (disambiguation)
- ICL (disambiguation)
- Internationalist Communist League (Portugal)
- LC1 (disambiguation)
- LCI Communications
- LCII (disambiguation)
- LCL (disambiguation)
- La Chaîne Info
- LaSalle College
- Laguna Copperplate Inscription
- Landing Craft Infantry
- Lease Corporation International
- Leibniz Center for Informatics
- Lethbridge Collegiate Institute
- Life Cycle Impulse
- Life cycle inventory
- Lighthouse Chapel International
- Lions Clubs International
- Liquid Crystal Institute
- Liquid contact indicator
- Lisgar Collegiate Institute
- Loaded chamber indicator
- London Clubs International
- Louisiana Culinary Institute
- Lutheran Church - International