| Acronym | Definition |
|---|
| LECA➣Light Expanded Clay Aggregate (brand name) |
| LECA➣Lightweight Expanded Clay Aggregate (hydroponic growing medium) |
| LECA➣Laboratoire d'Examen des Combustibles Actifs (French: Fuel Assets Examination Laboratory) |
| LECA➣Law Enforcement Clerks Association |
| LECA➣Law Enforcement Communications Assistant (US Border Patrol) |
| LECA➣Launch Escape Control Area |
| LECA➣Largest Effective Coefficient Algorithm |
| LECA➣Lehman Caves National Monument |