| Abbreviation | Definition |
|---|---|
| ASAP | As Soon As Publishable |
| ASAS | Another Side, Another Story |
| ASB | ADPCM Stereo B |
| ASB | Alexander, Sharpe, and Bailey Fundamentals of Investing |
| ASBO | Also Seen in Blue and Orange |
| ASC | American Satellite Company |
| ASC | American Society of Cinematographers |
| ASF | Advanced Systems Format (formerly Advanced Streaming Format) |
| ASFF | Aesthetica Short Film Festival |
| ASFF | Arnold Sports Film Festival |
| ASH | A Secret History |
| ASH | Ash A Secret History |
| ASHES | Another Sad Horrific English Series |
| ASHP | American Social History Project |
| ASI | Artistic Skin Illustrations |
| ASIFA | Association Internationale du Film d'Animation |
| ASMP | American Society of Media Photographers |
| ASMS | Advanced Social Media Strategy |
| ASNE | American Society of Newspaper Editors |
| ASOM | Acute Suppurative Otitis Media |