| Abbreviation | Definition |
|---|---|
| ALC | Alternative Learning Center |
| ALC | American Legend Cooperative |
| ALC | American List Counsel |
| ALC | Amplitude Level Control |
| ALC | Apple Lossless Codec |
| ALC | Ashley Louise Crouse |
| ALC | Assembler Language Coding |
| ALC | Associazione Laici Canossiani |
| ALC | Associazione Laura Coviello |
| ALC | Assures Less Contacts |
| ALC | Astounding Loving Courageous |
| ALC | Atlantic Lottery Corporation |
| ALC | Auto Logon Credential |
| ALC | Automotive Leather Company |
| ALCA | Arizona Landscape |
| ALCAM | Activated Leukocyte Cell Adhesion Molecule |
| ALCAP | Access Link Control Application Part |
| ALCAP | Alfa Laval Clarifier and Purifier |
| ALCB | Abundant Life Christmas Banquet |
| ALCB | All Lutheran Church of Brussels |