| Rank | Abbreviation | Meaning |
|---|
| ***** | LCAA | Long Chain Alkylamine Amine
| |
| ***** | LCAA | Long Chain Aliphatic Alcohols
| |
| ***** | LCAA | Latino Coalition Against AIDS
| |
| **** | LCAA | Life Coaching Association of Australia
| |
| **** | LCAA | Latvian Civil Aviation Administration
| |
| *** | LCAA | LeRoy Crandall and Associates
| |
| *** | LCAA | Lake Community Action Agency
| |
| *** | LCAA | Lowcountry Community Action Agency
| |
| *** | LCAA | Life Cycle Activity Analysis
| |
| *** | LCAA | Livingston County Athletic Association
| |
| ** | LCAA | Lourdes College Alumni Association
| |
| ** | LCAA | Leadership Chattanooga Alumni Association
| |
| ** | LCAA | Loudoun County Aeromodelers Association
| |
| ** | LCAA | Leadership Cobb Alumni Association
| |
| * | LCAA | lung cancer-associated antigen
| |
| * | LCAA | Lancaster County Art Association
| |
| * | LCAA | Livestock Center Auction Arena
| |
| * | LCAA | Leadership Columbia Alumni Association
| |
| * | LCAA | Lebanon County Ambulance Association
| |
| * | LCAA | Liberty Center Association for the Arts
| |
| * | LCAA | Lenawee County Athletic Association
| |
| * | LCAA | Liberia Civil Aviation Authority
| |
| * | LCAA | Large Civil Aircraft Agreement
| |
| * | LCAA | Legato Certified Availability Administrator
| |
| * | LCAA | Lancaster County Art Association's
| |