| Abbreviation | Definition |
|---|---|
| LBWA | Los Baños Wildlife Area |
| LBWE | Lower Brule Wildlife Enterprise |
| LC | Library of Congress |
| LC | The Library of Congress |
| LCC | Life Cycle Costs |
| LCCN | Library Of Congress Catalog Number |
| LCMP | Life Cycle Management Plan |
| LCNAF | Lieutenant Commander, Naval Air forces |
| LCO | Light Cycle Oil |
| LCO | Local Control Office |
| LCRI | Library of Congress Rule Interpretation |
| LCS | Laboratory Control Sample |
| LCSP | Life Cycle Support Plan |
| LCZ | Lower Colluvial Zone |
| LD | Labor Demand |
| LD | Lock and Dam |
| LDC | Least Developed Country |
| LE | Limited Extension |
| LEAD | Leadership, Empowerment, And Development |
| LEAD | Leadership, Ethics, Achievement, and Development |