| Abbreviation | Definition |
|---|---|
| AP | Average Power |
| APA | Advanced Processor Assembly |
| APA | All Points Addressable |
| APA | Army Pre-positioned Afloat |
| APA | Army Procurement Agency |
| APACHE | AH-64 Advanced Attack Helicopter |
| APADS | Advanced Precision Airborne Delivery System |
| APAM | Anti-Personnel/Anti-Materiel |
| APA-M | Army Public Affairs Midwest |
| APA-M | Army Public Affairs – Midwest |
| APAN | Asia-Pacific Area Network |
| APB | Acquisition Program Baseline |
| APB | All Purpose Bulletin |
| APB | Ammunition Process Buildings |
| APBI | Advance Planning Briefings for Industry |
| APBS | Automated Property Book System |
| APC | Account Processing Code |
| APC | Aerial Port Commander |
| APC | All Purpose Capsule |
| APC | All Purpose Capsule - Asprin Phen? Caffiene |