| l | Liter |
| l. | Links |
| La. | Louisiana |
| LA | Land access; Louisiana |
| L.A. | Los Angeles (Calif.) |
| LAAS | Local Area Augmentation System |
| LAC | Litografia Artistica Cartografica; Local Area Composite |
| LACIE | Large Area Crop Inventory Experiment |
| LADAR | Laser Detection and Ranging |
| LAGEO | Laser Geodynamic Satellite |
| LAGIC | Louisiana Geographic Information Center |
| LAMP | Low Altitude Mapping Photogrammetry |
| LAMPS | Laser-scan Automated Map Production System |
| LAMS | Large Area Mosaicing Software |
| LAN | Local area network |
| LAND | Landmark feature identification number |
| LANDSAT | Land Satellite |
| LAP | Landsat Applications Program (PNW) |
| LARIS | Louisiana Areal Resource Information System |
| LARS | Laboratory for Applications of Remote Sensing (Purdue Univ.) |
| LARSYS | Laboratory of Applications of Remote Sensing Image Data Processing System (Purdue Univ.) |
| LAS | Land Analysis System |
| LASS | Land Applications Satellite System (ESA) |
| Lat. | Latitude |
| LAT | Large Area Triangulation |
| LAU | Landesamt fur Umweltschutz (Saarland) |
| LBR | Laser Beam Recorder |
| LC | Library of Congress (U.S.); Land cover |
| L/C | Land cover |
| LCA | Land cover analysis |
| LCC | Lambert conformal conic (projection) |
| LCD | Liquid-crystal displays |
| LCDB | Land Cover Database |
| LCDC | Land Conservation and Development |
| LCGMD | Library of Congress Geography and Map Div. (U.S.) |
| LCS | Liberian Cartographic Service |
| LCTY | Locality |
| LDLS | Lesotho Dept. of Lands, Surveys and Physical Planning |
| LDMG | Lesotho Dept. of Mines and Geology |
| LDNG | Landing |
| LE | Less than or equal |
| LEAF | Land Ecosystem Atmosphere Feedback |
| LEC | Lockheed Electronics Company |
| LEM | Landform Elevation Model; Lunar Escape Module |
| LEP | Linear Error Probable |
| LES | Lincoln Electric System |
| LF | Large format; Line feed |
| LFC | Large format camera |
| LFI | Schweizerisches Landesforstinventar |
| LFVZ | Leichtensteinische Fremdenverkehrszentrale |
| lg. | lang |
| Lg. | Lange |
| LGN | Lagoon |
| LGS | Liberian Geological Survey; Louisiana Geological Survey |
| LGISC | Louisiana Geographic Information Systems Council |
| LGSOWOG | Landsat Ground Station Operations Working Group |
| lH | lichte Hohe |
| LI | Landmaelingar Islands |
| LIA | Land Information and Analysis office (USGS) |
| LIBER- Gdc |
Ligue des Biblioth`eques Europeennes de Recherche, Groupe des cartothecaires |
| LICGF | Land Information & Computer Graphics Facility (Univ. of Wisconsin-Madison) |
| LIDAR | Light Detection and Ranging |
| Lieut. | Lieutenant |
| LIGO | Laser Interferometer Gravitational-Wave Observatory |
| LIM | Land identification method; Land Inventory and Management Program (USSCS) |
| LIMAP | Landsat Imagery Analysis Package (S.Dakota) |
| LIMO | Land Information Management Office (Miami County, Kans.) |
| LINZ | Land Information New Zealand |
| LIS | Land information system(s); Landsat Information System; Lightening Imaging Sensor |
| LISCOM | Land Information Systems Committee (So. Australia) |
| Lith. | Lithographed; lithographer |
| LK | Lake |
| LKB | Lockwood, Kessler & Bartlett Inc. |
| LKC | Crater lake |
| LKI | Intermittent lake |
| LKS | Lakes |
| LKSC | Crater lakes |
| LL | Line-by-line |
| LLA | Adjusted line length |
| LLC | Line length code |
| LLV | Low Light Visibility |
| LMCTF | Land Managers Cooperative Task Force (Alaska) |
| LMIC | Land Management Information Center |
| LMP | Land Management Planning |
| LMS | Large-scale mapping system |
| LMV | Statens Lantmateriverket (Sweden) |
| LO | Located object |
| L&O | Limnology & Oceanography (journal) |
| LOC | Library of Congress; Landsat Oversight Committee (Colorado) |
| LOGIC | Loveland Geographic Information/Cartographic System |
| LOMA | Letters of map amendment |
| LOMC | Letters of map correction |
| LOMR | Letters of map revision |
| Lon. | Longitude |
| Long. | Longitude |
| LORAN | Long Range Navigation (system) |
| LOS | Land Observation Satellite (Japan); Line-of-sight |
| LP | Line printer |
| LPI | Lines per inch |
| LPM | Load point marker |
| LPS | Library Programs Service (USGPO); Local positioning systems |
| LQ | Letter quality |
| LR | Laser Retroflector |
| LRD | Low resolution data |
| LRDA | Land Resources Data Analysis |
| LRDB | Low Resolution Data Base |
| LRDC | Land Resources Development Centre |
| LRIDP | Land Resources Inventory Demonstration Project (PNW) |
| LRIS | Land Registration and Information Service (Maritime Provinces); Land Resource Information System (S. Dakota and N. Carolina) |
| LRITF | Land Resources Inventory Task Force |
| LRM | Linear Referencing Method |
| LRR | Laser Retro-reflector |
| LRS | Linear Referencing System |
| LRU | Line Replaceable Unit; Line Replacement Unit |
| LRUD | Left, right, up, down |
| L/S | Landsat |
| LSAW | Land Surveyors' Assn. of Washington |
| LSD | Land Surface Datum; Lands and Survey Div. (Trinidad and Tobago) |
| LSDP | Landsat Signature Development Program (software) |
| LSIT | Land surveyor in training |
| LSN | Linear scaling number |
| LSO | Land Surveyors Online |
| LSPS | Louisiana Society of Professional Surveyors |
| LSR | Local Space Rectangular |
| LSRP | Laser Printer |
| Lst | Ladestelle |
| LST | Local Standard Time |
| Lt. | Lieutenant |
| LT | Less than; Local Time; Linear triangulation |
| LTC | Light transfer characteristics |
| LTE | Less than or equal |
| LTTM | Longterm Terrain Model |
| LTO | Land Title Office (New Zealand) |
| LTU | Line Transfer Unit |
| LU | Land units |
| L/U | Land use |
| LUCCAS | Land Use and Cover Change Analysis System (Pacific Meridian Resources) |
| LUDA | Land Use and Data Analysis (program); Land use development assistance |
| LU/LC | Land use, land cover |
| LUM | Limited update, monoscopic |
| LUMIS | Land Use Management Information System (JPL software) |
| LUMS | Land Use Management System |
| LUNHA | Land Use History of North America (USGS) |
| LUNR | Land Use and Natural Resource Information System (N.Y.) |
| LUPIN | Land Use Planning Information Network (CERES) |
| LUS | Limited update, stereo |
| LUST | Leaking underground storage tank |
| LUT | Land utilization type |
| LVAB-W | Landesvermessungsamt Baden-Wurttemberg |
| LVAN-W | Landesvermessungsamt Nordrhein-Westfalen |
| LVAR-P | Landesvermessungsamt Rheinland-Pfalz |
| LVAS | Landesvermessungsamt des Saarlandes |
| LVAS-H | Landesvermessungsamt Schleswig-Holstein |
| LVVWD | Las Vegas Valley Water District |
| lW | lichte Weite |
| LWD | Littoral Warfare Data |