| AHDA | American Holistic Dental Association | 美国整体牙科协会 |
| AHDA | American Holiday Decorators Association | 美国假日装饰协会 |
| AHDA | Animal Health Distributors Association (UK) | 动物健康经销商协会（英国） |
| AHDA | Australian Huntington's Disease Association | 澳大利亚杭丁顿氏症协会 |
| AHDA | Alberta Highland Dancing Association (Canada) | 阿尔伯塔高地舞蹈协会（加拿大） |
| AHDA | Animal Health Distributors Association | 动物健康经销商协会 |
| AHDA | Australasian Human Development Association | 澳大利亚人类发展协会 |
| AHDA | Asymmetric Hetero Diels-Alder | 不对称异Diels-Alder |
| AHDA | Autonomous Hazard Detection and Avoidance | 自主危险检测和规避 |
| AHDA | Affordable Housing Development Assistance | 经济适用住房发展援助 |
| AHDA | Agency for Human Development in Afghanistan | 阿富汗人类发展署 |
| AHDA | Arkansas Housing Development Agency | 阿肯色州住房发展局 |
| AHDA | Adolescent Health and Development in Africa (conference) | 非洲青少年健康与发展（会议） |
| AHDA | Assistant Help Desk Advisor | 助理帮助台顾问 |
| AHDA | Advanced Holographic Decoy Array | 高级全息诱饵阵列 |
| AHDA | African-Hebrew Development Agency (Israel) | 非洲希伯来开发署（以色列） |