| Abbreviation | Definition |
|---|---|
| LLS | Leukemia and Lymphoma Society |
| LLUAHSC | Loma Linda University Adventist Health Sciences Center |
| LLUMC | Loma Linda University Medical Center |
| LLW | Living Lands and Waters |
| LLWRO | Living Lands and Waters Restoration Organization |
| LMAP | Land Mine Awareness Programme |
| LMC | London Muslim Centre |
| LMDS | Land Mine Disability Support |
| LMF | Lake Michigan Federation |
| LMFC | Lower Mainland Food Coalition |
| LMHC | Laboratory Manual Harmonization Committee |
| LMI | Linux Mark Institute |
| LMMS | Last Mile Mobile Solution (app by Fieldworker Products Limited) |
| LNA | Lakeshore Nonprofit Alliance |
| LNESC | LULAC National Educational Service Center |
| LNESCI | LULAC National Educational Service Centers, Inc. |
| LNIAAC | Los Ninos International Aid and Adoption Center |
| LNIAC | Los Ninos International Adoption Center |
| LNT | Leave No Trace |
| LNTCOE | Leave No Trace Center for Outdoor Ethics |