| Abbreviation | Definition |
|---|---|
| ALSE | Absorber Lined Shielding Enclosure |
| ALSEP | Apollo Lunar Surface Experiment Package |
| ALSEP | Apollo Lunar Surface Experimental package |
| ALSEP | Apollo Lunar Surface Experiments Package |
| ALSEP | Apollo Lunar Surface Experiments Package?? |
| ALSF | Alex's Lemonade Stand |
| ALSH | Asymmetric Locality Sensitive Hashing |
| ALSI | Advantage Learning Systems Inc |
| ALSI | Air and Liquid Systems Inc |
| ALSI | American Lobster Settlement Index |
| ALSI | ASM Laser Separation International |
| ALSI | Assessment Learning and School Improvement |
| ALSK | A Little Street Kitchen |
| ALSO | Advanced Life Support in Obstetrics |
| ALSOB | Associazione Laureati Suor Orsola |
| ALSOB | Associazione laureati Suor Orsola Benincasa |
| ALSP | Agape Licensed Spiritual Practitioner |
| ALSP | American Life Science Pharmaceuticals |
| ALSP | Approximate Least Square Problem |
| ALSP | Association of Laser Safety Professionals |