| Acronym | Definition |
|---|
| ASS | Asset |
| Ass | Assignment |
| ASS | Assembler |
| Ass | Assyrian (linguistics) |
| ASS | Associação (Portuguese: association; postal usage) |
| ASS | After School Special |
| ASS | After School Snack |
| ASS | Acetylsalicylic Acid |
| ASS | Allocation de Solidarité Spécifique |
| ASS | Applescript Studio |
| ASS | Argininosuccinate Synthetase |
| ASS | Aarskog-Scott Syndrome |
| ASS | Alien Space Ship |
| ASS | Acid Sulfate Soils |
| ASS | After Sale Service |
| ASS | Above Seat Steering |
| ASS | All Star Survivor (TV show) |
| ASS | Angle Side Side (false trigonometry postulate) |
| ASS | Anti-Spam Script |
| ASS | Always Stay Sweet |
| ASS | All Star Special |
| ASS | Application Support Specialist |
| ASS | Admiralty Secondary School (Singapore) |
| ASS | Anderson Secondary School (Singapore) |
| ASS | Anterior Superior Spine |
| ASS | After Show Show (radio show) |
| ASS | Average Sample Size |
| ASS | Alberta Speleological Society |
| ASS | Area Sales Supervisor |
| ASS | Attention Seeking Syndrome |
| ASS | Adams/Stewart/Sting (band) |
| ASS | After School Suspension |
| ASS | Average Signal Strength |
| ASS | Aviation Support Ship |
| ASS | Auxiliary Steam System |
| ASS | Ambler Skate Shop (Ambler, PA) |
| ASS | Assistant Shift Supervisor (job title) |
| ASS | Aggie Speleological Society (Texas A&M University) |
| ASS | Anti-Spyware Suite |
| ASS | Active Symmetric Swapping (Unicode control character) |
| ASS | American Shipping Service (The Simpsons) |
| ASS | American Students' Society |
| ASS | Acronym Specialists Society |
| ASS | Application Software Specialist |
| ASS | Arundel State School (Gold Coast, Australia) |
| ASS | Austrian Spine Society (Vienna, Austria) |
| ASS | Agentiei Sociale A Studentilor (Romania) |
| ASS | Avionics Support Section |
| ASS | Allied Soviet Squad (gaming clan) |
| ASS | Association of Soccer Sponsors |
| ASS | Anarchy Solid Sound (Brazilian punk rock band) |
| ASS | Assistant Supervisor Station |
| ASS | Automatic System Security |