| ARSA | Airport Radar Service Area | 机场雷达服务区 |
| ARSA | Aeronautical Repair Station Association | 航空修理站协会 |
| ARSA | Alberta River Surfing Association (Calgary, AB, Canada) | 阿尔伯塔河冲浪协会（卡尔加里，AB，加拿大） |
| ARSA | Associate of the Royal Scottish Academy | 苏格兰皇家学院副学士 |
| ARSA | Arylsulfatase A | 芳基硫酸酯酶A |
| ARSA | Anglican Rite Synod in the Americas | 美洲圣公会宗教仪式 |
| ARSA | Automated Radioxenon Sampler/Analyzer | 自动化Radioxenon采样/分析器 |
| ARSA | Airborne Reconnaissance and Surveillance Architecture | 机载侦察和监视体系结构 |
| ARSA | arylisulfatase A | 芳基硫酸酯酶A |