| ASA | Astronomical Society Of The Atlantic | - | Atmospheric Research Center |
| ASA | American Society Of Agronomy | - | Computer Acronyms(common) |
| ASA | Acrylonitrile-styrene-acrylate Terpolymer | - | Computer Acronyms(common) |
| ASA | Alkenylsuccinic Anhydride | - | Computer Acronyms(common) |
| ASA | Alternancy Symmetry Adapted (method For Spin-independent Hamiltonians For Alternant Hydrocarbons) | - | Computer Acronyms(common) |
| ASA | At. Sphere Approxn. | - | Computer Acronyms(common) |
| ASA | AcetylSalicylic Acid - American Standards Association - Army Security Agency - Atlantic Southeast Airlines | - | Astronomy |
| ASA | adaptive security algorithm
| - | Human Genome |
