| HAP | Hydrolisis Animal Protein | 水解动物蛋白 |
| HAP | High Assurance Platform | 高保障平台 |
| HAP | Hague Appeal for Peace | 海牙和平呼吁 |
| HAP | Healthy Aging Partnership (Puget Sound, WA) | 健康老龄伙伴关系（华盛顿州普吉特湾） |
| HAP | High Altitude Platform | 高空平台 |
| HAP | Hazardous Air Pollutant | 有害空气污染物 |
| HAP | High Accident Potential | 高事故隐患 |
| HAP | Hospital-Acquired Pneumonia | 医院获得性肺炎 |
| HAP | Hierarchical Analytical Protocol | 分层分析协议 |
| HAP | Human Anatomy and Physiology | 人体解剖学和生理学 |
| HAP | Home-owners' Assistance Program | 屋主的援助计划 |
| HAP | High Average Power | 高平均功率 |
| HAP | Hardware Architecture Plan | 硬件架构计划 |
| HAP | Housing Assistance Payment (US Housing & Urban Development Program) | 我们的住房援助(程序)的住房和城市发展 |
| HAP | Higher Achievement Program (education) | 高等成就计划（教育） |
| HAP | Humanitarian Action Plan | 人道主义行动计划 |
| HAP | Hourly Analysis Program | 每小时分析计划 |
| HAP | Health Alliance Plan (Michigan) | 健康联盟计划（密歇根州） |
| HAP | Homeownership Assistance Program (Florida) | 住房所有权援助计划（佛罗里达州） |
| HAP | Healthy Alaskans Program | 健康阿拉斯加计划 |
| HAP | Host Access Protocol | 主机进入协议 |
| HAP | Hospital Advantage Plan (AARP) | 医院优势计划（AARP） |
| HAP | Hillside Agricultural Project (Jamaica) | 山坡农业项目（牙买加） |
| HAP | hereditary amyloid polyneuropathy | 遗传性淀粉样多发性神经病 |
| HAP | humoral antibody production | 体液抗体产生 |
| HAP | heredopathia atactica polyneuritiformis | 多发性尿崩症 |
| HAP | high amplitude peristalsis | 高振幅蠕动 |
| HAP | hydrated antimony pentoxide | 水合五氧化二锑 |
| HAP | Holographic Assistance Program | 全息辅助计划 |
| HAP | Compressed file archive (HAP) | 压缩文件存档（HAP） |
| HAP | hydrolyzed animal protein | 水解动物蛋白 |
| HAP | Long Island, Queensland, Australia | 澳大利亚昆士兰州长岛 |
| HAP | histamine acid phosphate | 磷酸组胺 |
| HAP | Highly-Automated Process | 高度自动化的流程 |
| HAP | High Altitude Prototype | 高空原型 |
| HAP | Heuristic Astronomy Project | 启发式天文学项目 |
| HAP | Hamster Alliance Productions | 仓鼠联盟制作 |
| HAP | High Age Profile | 高年龄段 |
| HAP | Home After Program | 回家后计划 |
| HAP | Homework Accountability Program | 家庭作业责任计划 |