| L | Compass Locator (Locator Beacon) |
| L | Left; Low Level (Chart designator) |
| LAA | Local Airport Advisory |
| LACFT | Large Aircraft |
| LAHSO | Land and Hold Short Operations |
| LARS | Lower Airspace Radar Service |
| LAT | Latitude |
| LBCM | Locator Back Course Marker |
| LBM | Locator Back Marker |
| lb / LBS | Pound(s) |
| LC | Landing Chart |
| LCG | Load Classification Group |
| LCN | Load Classification Number |
| LCTR / Lctr | Compass Locator (Locator Beacon) |
| LIDA | Landing Distance Available |
| LDA | Localizer-type Directional Aid (US) |
| LDG | Landing |
| LDI | Landing Direction Indicator |
| LDIN | Lead in Lights |
| LF | Low Frequency (30 - 300 kHz) |
| LFR | Low Frequency Range ( RING |
| LGT | Light |
| LGTD | Lighted |
| LGTH | Length |
| LH | Left Hand |
| LIAL | Low Intensity Approach Lights |
| LIFR | Low IFR |
| LIH | Light intensity High |
| LIL | Light Intensity Low |
| LIM | Light Intensity Medium |
| LIM | Locator inner Marker |
| LIRCLL | Low Intensity Runway Centre Line Lights |
| LIRL | Low intensity Runway Lights |
| LL | Low Level |
| LLWAS | Low Level Windshear Alert System |
| LLZ | Localizer ( ICAO not used by Jeppesen |
| LMM | Locator Middle Marker |
| LNDG | Landing |
| LO | Locator at Outer Marker Site |
| LOC | Location, local/locally/located |
| LOC | Localizer ( Jeppesen abbreviation |
| LOM | Locator Outer Marker |
| LONG | Longitude |
| LRG | Long Range |
| LSALT | Lowest Safe Altitude |
| LSB | Lower Sideband |
| LT | Left Turn/Turn Left |
| LT | Local Time |
| LTD | Limited |
| LTS | Lights |
| LVP | Low Visibility Procedure |
