| Abbreviation | Definition |
|---|---|
| 5S | Sort;Set in Order; Shine; Standardize; Sustain |
| AAEF | Albanian American Enterprise Fund |
| AAEN | Asian American Employee Network |
| AAIP | Arab Association for Investment Promotion |
| AAIW | Automotive Aftermarket Industry Week |
| ABIE | Australian Business in Europe |
| ABN | Australian Business Number |
| ABTA | the Asia Business Trade Association |
| ACBC | Australia China Business Council |
| ACCC | Australian Competition and Consumer Commission |
| ACCC | Australian Competition Consumer Commission |
| ACCeSs | Automated Customs Clearance System |
| ACCI | Australian Chamber of Commerce and Industry |
| ACDA | Arms Control and Disarmament Agency |
| ACE | Advancing Canadian Entrepreneurship |
| ACE | Automated Commercial Environment |
| ACEP | Advisory Committee on Export Policy |
| ACH | Automated Clearing House |
| ACIO | Australian Commerce and Industry Office |
| ACMC | Australian Cefact Management Committee |