| Abbreviation | Definition |
|---|---|
| ACGE | Areia Creations Global Entertainment |
| ACGH | Array Comp Genomic Hybridization |
| ACGH | Array Comparative Genomic Hybridisation |
| ACGR | Adjusted Cohort Graduation Rate |
| ACGR | Annual Compound Growth Rate |
| ACGS | All Creatures Great and Small |
| ACGS | Assistant Chief of the General Staff |
| ACGW | Aquilla Custom Gun Works |
| ACH | Account Clearing Hacking |
| ACH | Air Craft Hand |
| ACH | Airbus Corporate Helicopters |
| ACH | Analysis of Competing Hypotheses |
| ACH | Associated Channel Header |
| ACH | Association for Computers and the Humanities |
| ACH | Automated Clearing House?? |
| ACHA | Adult Congenital Heart Association |
| ACHA | American Catholic Historical Association |
| ACHA | American Collegiate Hockey Association |
| ACHA | American Collegiate Horsemen's Association |
| ACHA | American Coon Hunters Association |