| Abbreviation | Definition |
|---|---|
| AASW | Africa Agriculture Science Week |
| AATA | Arizona Agriculture Teachers Association |
| AAVF | African Association for Vertical Farming |
| AAWB | Assistance to Agriculture in the West Bank |
| ABA | American Barn Association |
| ABA | Ayrshire Breeders Association |
| ABAC | Abraham Baldwin Agricultural College |
| ABAC | Abraham Baldwin Agricultural College Abraham Baldwin |
| ABAD | Agency for Barani Areas Development |
| ABC | Absolutely Beastly Crop |
| ABCIA | Alabama Beef Cattle Improvement Association |
| ABDC | Agricultural biotechnologies in developing countries |
| ABDS | Agricultural Business Development Scheme |
| ABIC | Agricultural Bioscience International Conference |
| ABIP | Arkansas Beef Improvement Program |
| ABOC | Agricultural Bank of China |
| ABP | Agricultural By Product |
| ABPA | Agricultural Bioterrorism Protection Act |
| ABRF | Applied Broiler Research Farm |
| ABRI | Agricultural Business Research Institute |