| Abbreviation | Definition |
|---|---|
| APES | Advertising Partners Everyone Succeeds |
| APLB | Advertising and Promotional Labeling Branch |
| APLB | Advertising and Promotional Labelling Branch |
| APORD | Advertising and Public Opinion Research Directorate |
| APR | Advertising Production Resources |
| AQAA | Association of Quebec Advertising Agencies |
| AREF | Advertising Regulation Electronic Files |
| AROMA | Advertising Rhetoric Of Madison Avenue |
| ASAI | Advertising Standards Authority for Ireland |
| ASAP | Advertising Specialties And Printing |
| ASAS | Advertising Standards Authority of Singapore |
| ASC | Advertising Standards Canada |
| ASCB | Advertising Standards Complaints Board |
| ASCI | Advertising Standards Community of India |
| ASCI | Advertising Standards Council of India |
| ASI | Advertising Speciality Institute |
| ASI | Advertising Specialties Institute |
| ASI | Advertising Specialties International |
| ASI | Advertising Specialty Institute |
| ASI | Advertizing Specialties Institute |