| Acronym | Definition |
|---|
| LCSA | Local Child Support Agency |
| LCSA | Loudoun County Sanitation Authority (Virginia) |
| LCSA | Lutheran Church in Southern Africa |
| LCSA | Lumen Cross-Sectional Area |
| LCSA | Lied Center Student Association (University of Kansas; Lawrence, KS) |
| LCSA | Liver Cancer Surgery Appeal (UK) |
| LCSA | Loughborough College School Association (UK) |
| LCSA | local consolidated systems aid |
| LCSA | London Communications Security Agency (UK) |
| LCSA | Lake Conroe Sailing Association |
| LCSA | Lake City Stars Arena (Plattsburgh, NY) |
| LCSA | Land Claims Set-Aside |
| LCSA | Load Carrying Structure Assembly (NASA) |
| LCSA | Life Cycle Support Agent |
| LCSA | Left Coast Sonata Association |
| LCSA | Life Cycle Support Activity |
| LCSA | Life Cycle Support Architecture |
| LCSA | Lake County Step Ahead |
| LCSA | Louisiana Crushed Stone Association (Baton Rouge, LA) |
| LCSA | Latino/Chicano Student Association |
| LCSA | Localized Cross Spectral Analysis |
| LCSA | Leopold Center for Sustainable Agriculture |
| LCSA | Land Claims Settlement Act of 1971 (US) |
| LCSA | Lee Common School Association (UK) |