| COAS | County of Oxford Archery Society | 牛津郡射箭协会 |
| COAS | College of Art and Sciences | 艺术与科学学院 |
| COAS | College of Oceanic and Atmospheric Sciences at Oregon State University | 俄勒冈州立大学海洋与大气科学学院 |
| COAS | Children of Alcoholics | 酗酒儿童 |
| COAS | Congregational Order of the Avenging Saviour | 复仇救世主公理会 |
| COAS | Course Optical Alignment Sight (NASA) | 航向光学对准瞄准镜（NASA） |
| COAS | Condition and Operation Advisory System | 状态和操作咨询系统 |
| COAS | coenzyme A radical or reduced coenzyme A | 辅酶A自由基或还原辅酶A |
| COAS | Continuity of Operations - Alternate Site | 运营连续性-备用站点 |
| COAS | Crew Optical Alignment Sight | 乘员光学调准瞄准具 |
| COAS | Cooperadora de AcciÓn Social (Argentina) | Cooperadora de AcciÓn Social (Argentina) |
| COAS | Council of the Organization of American States | 美洲国家组织理事会 |
| COAS | College of Oceanic and Atmospheric Sciences (Oregon State University) | 海洋与大气科学学院（俄勒冈州立大学） |
| COAS | College of Arts and Sciences | 文理学院 |
| COAS | Caldera Open Administration System | 火山口开放管理系统 |
| COAS | Coarse/Crew Optical Alignment Sight | 粗/船员光学对齐 |
| COAS | Clinical Observations Access Service | 临床观察访问服务 |
| COAS | Caldera OpenLinux Administration Software | Caldera OpenLinux管理软件 |
| COAS | Chief of Army Staff | 陆军参谋长 |
| COAS | Complete Ophthalmic Analysis System | 完整的眼科分析系统 |