| Abbreviation | Definition |
|---|---|
| LOC | Loss Of Control |
| LOCI | Loss of Conditioned Air Inflow |
| LOOA | Letter of Operational Authority |
| LOP | Lean Of Peak |
| LOT | Leaves on Time |
| LOV | Limit Of Validity |
| LOV | Limit Of Visibility |
| LP | Licensed Pilot |
| LP | Low Pressure |
| LPT | Low Pressure Turbine |
| LPTAAC | Low Pressure Turbine Active Clearance Control Valve (aviation turbine engine) |
| LPTACC | Low Pressure Turbine Active Clearance Control |
| LRAACA | Long-Range Air ASW Capable Aircraft |
| LRASM | Long Range Anti-Ship Missile |
| LRCS | Long Range Communication System |
| LRD | Low Rate Discharge |
| LRM | Line Replaceable Module |
| LROPS | Long Range Operations |
| LRRA | Low Range Radio Altimeter |
| LRSA | Long Range Strike Aircraft |