L
- LAAG – light anti-aircraft gun
- LAAM – Light Anti-Aircraft Missile
- LAAW – Light Anti-Tank Assault Weapon
- LACA - Landing Craft Air Cushion
- LAD – light aid detachment
- LADS – light air defense system (US)
- LAG – Light Artillery Gun
- LALO – Low Altitude Low Opening
- LAM – Laser Aiming Module
- LAPES – Low-Altitude Parachute Extraction System
- LAR – Light Automatic Rifle
- LASER – Light Amplification by Stimulated Emission of Radiation
- LASIP – Light Artillery System Improvement Plan
- LATS – Light Armoured Turret System
- LAU – Light Armoured Unit
- LAV – Light Armored Vehicle (US)
- LAV – Light Assault Vehicle (US)
- LAV-AD – Light Armored Vehicle - Air Defense
- LAW – light anti-tank weapon
- LB – Long Barrel
- LC – Laser Collimator
- LCD – Liquid crystal display
- LCS – Loader Control System
- LCU – Landing Craft Utility
- LCV – Light Contingency Vehicle (LCV) (US)
- LD – Low drag, Line of Departure
- LE – Law Enforcement
- LED – light emitting diode
- LEP – Life Extension Programme
- LEU – Launcher Erector Unit
- LF – ATGW Light Forces' Anti-Tank Guided Weapon
- LF – Linked Feed
- LFHG – Lightweight Fragmentation Hand Grenade
- LFL – Light Fighter Lethality
- LIA – Linear Induction Accelerator
- LIMAWS – Lightweight Mobile Artillery Weapon System
- LION – Lightweight Infra-red Observation Night sight
- LIW – Lyttleton Engineering Works
- LKP – Loader Keyboard Panel
- LLAD – low-level air defence
- LLLTV – low light level television
- LLM – Launcher Loader Module
- LMAW – Light Multi-purpose Assault Weapon
- LMG – light machine gun
- LNS – Land Navigation System
- LNS – Laying and Navigation System
- L/O – Liaison Officer
- LOAL – Lock-On After Launch
- LOBL – Lock-On Before Launch
- LOC – Line Of Communication
- LOS – Line Of Sight
- LOSAT – Line Of Sight Anti-Tank
- LP – Liquid Propellant
- LP – Listening Post
- LPC – Launch Pod Container
- LPC – Launcher Pod Carrier
- LPG – Liquid Propellant Gun
- LPO – Leading Petty Officer
- LPT – Low-Profile Turret
- LPTS – Lightweight Protected Turret System
- LR – Long Rifle
- LR – Long-Range
- LRAR – Long Range Artillery Rocket
- LRASS – Long-Range Advanced Scout System
- LRAT – long-range anti-tank
- LRBB – long-range base bleed
- LRD – Long Range Deflagrator
- LRF – laser rangefinder
- LRF – Low Recoil Force
- LRHB – long-range hollow base
- LRIP – Low-Rate Initial Production
- LRM – Laser Rangefinder Module
- LRN – Lead Round Nose
- LRN – Low Recoil NORICUM
- LRRP – Long Range Reconnaissance Patrol
- LRSA – Long Range Sniper Ammunition
- LRSU – Long Range Surveillance Unit
- LRU – Launcher Replenishment Unit
- LRU – Line Replacement Unit
- LRU – Line-Replaceable Unit
- LSB – Landing Support Battalion
- LSS – Lightweight Shotgun System
- LSW – Light Support Weapon
- LTA – Launch Tube Assembly
- LTD – Laser Target Designator
- LTFCS – Laser Tank Fire-Control System
- LTP – Laser Target Pointer, Luminesant Training Projectile
- LUTE – Lightweight Uncooled Thermal Imager Equipment
- LVA – landing vehicle assault (US)
- LVS – Lightweight Video Sight
- LVT – Landing Vehicle Tracked (US)
- LVTC – Landing Vehicle Tracked Command (US)
- LVTE – Landing Vehicle Tracked Engineer (US)
- LVTH – Landing Vehicle Tracked Howitzer (US)
- LVTP – Landing Vehicle Tracked Personnel (US)
- LVTR – Landing Vehicle Tracked Recovery (US)
- LWC – Lead Wad Cutter
- LWIR – Long Wave Infrared
- LWL – LightWeight Launcher
- LWML – LightWeight Multiple Launcher
- LWMS – LightWeight Modular Sight
- LWS – laser warning system
- LWT – light weapon turret
- LZ – landing zone
Read more about this topic: Glossary Of Military Abbreviations