| Acronym | Definition |
|---|
| LASA | Law and Security Administration |
| LASA | Latin American Studies Association |
| LASA | Liberal Arts and Science Academy (Austin, TX) |
| LASA | Lojas Americanas SA (Portuguese: American Stores; Brazil) |
| LASA | Longitudinal Aging Study Amsterdam |
| LASA | Look Alike Sound Alike (drug naming; also seen as LA/SA) |
| LASA | Large Aperture Seismic Array |
| LASA | Lidar Atmospheric Sounder and Altimeter |
| LASA | Lung Association-Sleep Apnea |
| LASA | Laser Atmospheric Sounder and Altimeter |
| LASA | Lincoln Adult Soccer Association |
| LASA | Large Aperture Solar Array |
| LASA | Líneas Automáticas Sociedad Anónima (Spanish) |