| ECS | The Electrochemical Society | 电化学学会 |
| ECS | Engine Control System | 发动机控制系统 |
| ECS | Electronic control suspension | 电子控制悬架 |
| ECS | Electronic Control System | 电子控制系统 |
| ECS | Embedded Computer System | 嵌入式计算机系统 |
| ECS | Encryption Control Signal | 加密控制信号 |
| ECS | Enterprise Communication System | 企业通信系统 |
| ECS | European Communication Satellite | 欧洲通信卫星 |
| ECS | European Clay Series | 欧洲红土系列赛 |
| ECS | environmental concern system | 关心环境的制度 |
| ECS | Experimental Communications Satellite | 试验通信卫星 |
| ECS | Electronic Chart System | 电子海图系统 |
| ECS | Electronic Citation System | 电子引文系统 |
| ECS | Environmental Control System | 环境控制系统 |
| ECS | Electronic Clearing Service | 电子清算服务 |
| ECS | European Communications Satellite | 欧洲通信卫星 |
| ECS | Enhanced Chukka Shoe (Navy Boondocker) | 增强型Chukka运动鞋（海军蓝Boondocker） |
| ECS | Export Control System | 出口管制系统 |
| ECS | Elitegroup Computer Systems | 精英电脑 |
| ECS | Equilibrium Crystal Shape | 平衡晶体形状 |
| ECS | Empire City Subway | 帝国城地铁 |
| ECS | Executive Control System | 执行控制系统 |
| ECS | Emergency Cooling System | 应急冷却系统 |
| ECS | Electronic Clearing System | 电子清算系统 |
| ECS | Extended Core Storage | 扩展核心存储 |
| ECS | Emergency Control Station | 应急控制站 |
| ECS | Emergency Communications Staff | 应急通信人员 |
| ECS | Education Commission of the States | 美国教育委员会 |
| ECS | Ethics Compliance Standard | 道德合规标准 |
| ECS | Sucre (former currency of Ecuador; now EUR) | Sucre（厄瓜多尔前货币；现为欧元） |
| ECS | Electronic Control Services Company | 电子控制服务公司 |
| ECS | English Communications Service | 英语通信服务 |
| ECS | Electronic Claim Submission (insurance) | 电子索赔提交（保险） |
| ECS | Engineer Combat System | 工程师作战系统 |
| ECS | EOSDIS Core System | EOSDIS核心系统 |
| ECS | Equipment Concentration Site | 设备集中点 |
| ECS | Employee Consultation Service | 员工咨询服务 |
| ECS | Education, Culture, and Science | 教育、文化和科学 |
| ECS | East Coast Swing (dance style) | 东海岸秋千（舞蹈风格） |
| ECS | Enhanced Control Server (Lucent) | 增强型控制服务器（Lucent） |
| ECS | Electronic Commerce Services | 电子商务服务 |
| ECS | Exchange Conferencing Server (Microsoft) | Exchange会议服务器（Microsoft） |
| ECS | Encarta Class Server (Microsoft) | Encarta类服务器（Microsoft） |
| ECS | Educational Cost Sharing | 教育成本分担 |
| ECS | Extreme Combat Specialists | 极限作战专家 |
| ECS | Elder Care Specialist | 老年护理专家 |
| ECS | Electronic Consult System | 电子咨询系统 |
| ECS | Energy Consumption Saver | 节能器 |
| ECS | Enhanced Customer Service | 增强的客户服务 |
| ECS | Empire of Chivalry and Steel (Middle Ages historical interpretation organization) | 骑士与钢铁帝国（中世纪历史解释组织） |
| ECS | Enterprise Control Station | 企业控制站 |
| ECS | Engineered Compost Systems | 工程堆肥系统 |
| ECS | Ecuadorian Sucre | 厄瓜多尔苏克雷 |
| ECS | Evansville Chrysler Sunbeam (ammunition headstamp) | Evansville Chrysler Sunbeam（弹药头盔） |
| ECS | Experimental Control System/Station | 实验控制系统/站 |
| ECS | Engagement Control Station | 接合控制站 |
| ECS | Eastern Computer Services, Incorporated | 东方计算机服务公司 |
| ECS | Event Communications Service(s) | 事件通信服务 |
| ECS | Exceptional Children Services | 特殊儿童服务 |
| ECS | Effects Coordination System | 效果协调系统 |
| ECS | Electronic Cash Systems, Inc. | 电子现金系统公司。 |
| ECS | Electronic And Computer Science | 电子与计算机科学 |
| ECS | Evangelical Christian School (Cordova, TN) | 福音基督教学校（田纳西州科尔多瓦） |
| ECS | Economic Consultancy House | 经济咨询公司 |
| ECS | Extended Campus Service | 扩展校园服务 |
| ECS | Entertainment Computing Symposium | 娱乐计算研讨会 |
| ECS | Electroconvulsive Shock | 电惊厥性休克 |
| ECS | Emission Control System | 排放控制系统 |
| ECS | Exercise Control System | 运动控制系统 |
| ECS | Entry Control System | 进入控制系统 |
| ECS | Electronic Countersurveillance | 电子反监督 |
| ECS | Electronic Customer Service | 电子客户服务 |
| ECS | Emergency Calling Service (911 emergency service in SS7 documentation) | 紧急呼叫服务（SS7文档中的911紧急服务） |
| ECS | East China Sea | 东海 |
| ECS | extracellular space | 细胞外间隙 |
| ECS | Electronic Customer Support | 电子客户支持 |
| ECS | Engineering Control System | 工程控制系统 |
| ECS | Extended Character Set | 扩展字符集 |
| ECS | Electrical Control System | 电气控制系统 |
| ECS | eComStation (operating system) | eComStation（操作系统） |
| ECS | Electronic Cross-connect System (Sprint) | 电子交叉连接系统（Sprint） |
| ECS | Event Correlation Subsystem | 事件关联子系统 |
| ECS | Exterior Communications System | 外部通信系统 |
| ECS | Electronic Chart Systems | 电子海图系统 |
| ECS | EOF Core System | EOF核心系统 |
| ECS | Expeditionary Combat Support | 远征作战支援 |
| ECS | Engineering & Computer Simulations, Inc (Orlando, Florida) | 工程和计算机模拟、股份有限公司(奥兰多,佛罗里达) |
| ECS | Ellensburg Christian School | 埃伦斯堡基督教学校 |
| ECS | Essential Care Skills (St John Ambulance, UK) | 基本护理技能（英国圣约翰救护车） |
| ECS | External Computer System | 外部计算机系统 |
| ECS | Etherington Conservation Services (Greensboro, North Carolina) | Etherington保护服务（北卡罗来纳州格林斯博罗） |
| ECS | Elitegroup Computer Services | Elitegroup计算机服务 |
| ECS | Engineering and Computer Science | 工程与计算机科学 |
| ECS | Emergency Collaboration System (Forum Communications International) | 应急协作系统（国际论坛通信） |
| ECS | Electronic Communications System | 电子通信系统 |
| ECS | Episcopal Community Services (San Francisco, California) | 圣公会社区服务（加利福尼亚州旧金山） |
| ECS | Event Correlation Services | 事件关联服务 |
| ECS | E-Catalog Suite | 电子目录套件 |
| ECS | Enhanced Comfort System (Thomasville furniture) | 增强型舒适系统（托马斯维尔家具） |