| Abbreviation | Definition |
|---|---|
| ACF | A Credit Fiasco |
| ACFG | American Capital Financial Group |
| ACFM | Alternating Current Field Measurement |
| ACFMS | Avatar Client Funds Management System |
| ACFO | Assistant Chief Financial Officer |
| ACFP | Age Concern Financial Partnership |
| ACFR | Auckland Centre for Financial Research |
| ACGI | Aboriginal Contract Guarantee Instrument |
| ACGM | Annual Conference and General Meeting |
| ACH | Automatic Clearing House |
| ACI | A Concrete Idea |
| ACII | Associate of the Chartered Insurance Institute |
| ACIS | Automotive Competitiveness And Investment Scheme |
| ACM | Activities for Current Month |
| ACME | Activities Committee For Metro Employees |
| ACME | Annual Creative Marketing Extravaganza |
| ACME | Association for Chinese Management Educators |
| ACMS | Allofe Construction Management System |
| ACN | Affiliates Contribution Network |
| ACO | Accountable Care Organization |