| ETI | Ethical Trading Initiatives | 道德贸易行为守则 |
| ETI | Elektronika Telekomunikacja Informatyka (Polish: Electronics Telecommunications Informatics) | Elektronika Telekomunikacja Informatika（波兰语：电子电信信息学） |
| ETI | Employment Trends Index (The Conference Board) | 就业趋势指数（会议委员会） |
| ETI | Extended Transaction Interface | 扩展事务接口 |
| ETI | Execute This Instruction | 执行此指令 |
| ETI | Electrical Training Institute (of Southern California) | 电气培训学院（南加州） |
| ETI | Equator Technologies, Inc. | 赤道科技公司。 |
| ETI | estimated time of intercept (US DoD) | 估计拦截时间（美国国防部） |
| ETI | Eagle Technologies Incorporated | Eagle Technologies公司 |
| ETI | Ethical Trading Initiative (UK) | 道德贸易倡议（英国） |
| ETI | Extraterritorial Income | 域外收入 |
| ETI | Emergent Technologies Inc (Austin, TX) | Emergent Technologies Inc（德克萨斯州奥斯汀） |
| ETI | Enterprise Transition & Implementation | 企业转型和实施 |
| ETI | early transient incapacitant | 早期短暂失能 |
| ETI | Energy Time Indicator | 能量时间指示器 |
| ETI | ejection time index | 射血时间指数 |
| ETI | exhaust trail indicator | 排气轨迹指示器 |
| ETI | Economics & Technology Incorporated | 经济和技术,吸收了 |
| ETI | Expert Center for Taxonomic Identification | 分类鉴定专家中心 |
| ETI | Environmental Technology Initiative | 环境技术倡议 |
| ETI | Estimated Time to Invasion (game) | 估计入侵时间（游戏） |
| ETI | Evolutionary Technologies International, Inc. | Evolutionary Technologies International，Inc.公司。 |
| ETI | Enhanced Training in Idaho | 爱达荷州强化培训 |
| ETI | Economic Trends and Issues | 经济趋势和问题 |
| ETI | Ensemble Transport Interface | 集成传输接口 |
| ETI | Elapsed Time Indicator | 已用时间指示器 |
| ETI | Ente Teatrale Italiano (Italy) | Ente Teatrale Italiano（意大利） |
| ETI | Estudiants de TraducciÓ i InterpretaciÓ (Translation & Interpreting Students; Students Union) | Estudiants de TraducciÓ i InterpretaciÓ (Translation & Interpreting Students; Students Union) |
| ETI | Evolutionary Technology Insertion (military) | 进化技术插入（军事） |
| ETI | Economically Targeted Investment | 经济目标投资 |
| ETI | Economical and Technological Intelligence (5th European Framework Programme) | 经济和技术情报（第五届欧洲框架计划） |
| ETI | East Texas Inspections (Grand Saline, TX real estate) | 东德克萨斯州检察局（德克萨斯州大萨利恩房地产） |
| ETI | Enterprise Telephone Integration (CMA) | 企业电话集成（CMA） |
| ETI | Enterprise Theory of Investigation (RICO statute) | 企业调查理论（RICO法规） |