L
- LAAD – Low Altitude Air Defense
- LCDR – Lieutenant Commander (US Navy)
- LCPL – Lance Corporal (US Marines)
- LES – Leave and Earnings Statement
- LP – Listening Post
- LP/OP – Listening Post Observation Post
- LGOP – Little Group Of Paratroopers
- LT – Lieutenant
- LTC or Lt Col – Lieutenant Colonel
- LTG or Lt Gen – Lieutenant General
- LTJG – Lieutenant, Junior Grade (US Navy)
- LUP – Lying-Up Point
- LZ – Landing Zone
Read more about this topic: List Of U.S. Government And Military Acronyms