| EASI | Economic Activity Surprise Index | 经济活动惊喜指数 |
| EASI | Enterprise Administrative Services Initiative | 企业管理服务计划 |
| EASI | Enhanced Asynchronous SCSI (Small Computer Systems Interface) Interface | 增强型异步SCSI（小型计算机系统接口）接口 |
| EASI | Extended Access To Student Information | 学生信息的扩展访问 |
| EASI | Expanded Additional Skill Identifier | 扩展的附加技能标识符 |
| EASI | Easy Access For Students And Institutions | 方便学生和机构使用 |
| EASI | Engineered Support Systems, Inc. | 工程支持系统公司。 |
| EASI | European Academic Supercomputing Initiative | 欧洲学术超级计算倡议 |
| EASI | Equal Access For Software And Information | 软件和信息的平等访问 |
| EASI | Extended Acorn System Interface | 扩展Acorn系统接口 |
| EASI | Equal Access to Software and Information | 平等获取软件和信息 |
| EASI | Engineered Air Systems Inc. (St Louis, Missouri) | 工程空气系统公司（密苏里州圣路易斯） |
| EASI | Electronic Assembly Services Inc. | 电子装配服务公司。 |
| EASI | Energy Automation Systems, Inc. | 能源自动化系统公司。 |
| EASI | Estimate of Adversary Sequence Interruption | 对抗序列中断的估计 |
| EASI | Embedded All-in-one System Interface | 嵌入式一体式系统接口 |
| EASI | Environmental Alliance for Senior Involvement | 老年人参与环境联盟 |
| EASI | Easy Access for Students and Institutions (student financial assistance) | 方便学生和机构（学生资助） |
| EASI | Electronic Access to System Information | 电子访问系统信息 |