| ATI | American Television Incorporated | 美国电视公司 |
| ATI | Association of Technical Institutions | 技术机构联合会[英] |
| ATI | Array Technology Industry Technologies inc | ATI公司 |
| ATI | Automatic Transmitter Identification | 自动发射机识别 |
| ATI | Alarm Transmission Interface | 报警传输接口 |
| ATI | Air Technical Intelligence | 空军技术情报 |
| ATI | Aerial Tuning Inductance | 天线调谐电感 |
| ATI | Association Of Technical Incompetence | 技术不称职协会 |
| ATI | American Tasting Institute | 美国品尝协会 |
| ATI | American Trades Institute | 美国贸易协会 |
| ATI | Associacion de Tecnicos de Informatica (Spain) | 信息技术协会（西班牙） |
| ATI | Advanced Telecommunications Institute | 高级电信协会 |
| ATI | acety lenetetraiodide | 阿西蒂·莱内特赖奥德（acety lenetetraodide） |
| ATI | Agricultural Technical Institute | 农业技术研究所 |
| ATI | A Technology Inferior | 技术劣势 |
| ATI | Ati Technologies Incorporated | Ati Technologies公司 |
| ATI | AgrupaciÓn Tinerfeña Independiente | AgrupaciÓn Tinerfeña Independiente |
| ATI | Air Toxics Index | 空气毒性指数 |
| ATI | AsociaciÓn Toto-Integrado | AsociaciÓn Toto-Integrado |
| ATI | Australian Technologies Inc | 澳大利亚技术公司 |
| ATI | Allegheny Technologies, Inc. | 阿勒格尼科技公司。 |
| ATI | alpha-trypsin inhibitor | α-胰蛋白酶抑制剂 |
| ATI | Always Trash Inventor | 始终丢弃Inventor |
| ATI | American Training International | 美国国际培训 |
| ATI | abdominal trauma index | 腹部创伤指数 |
| ATI | Advanced Training Institute | 高级培训学院 |
| ATI | Alternativa de Transporte Integrado | 整体运输备选方案 |
| ATI | Activist Times Inc | Activist Times公司 |
| ATI | Aquamira Technologies, Inc. | Aquamira科技公司。 |
| ATI | Along-Track Interferometry | 沿轨道干涉测量 |
| ATI | Above-Threshold Ionization | 阈值以上电离 |
| ATI | Achievement Through Innovation (ATI Systems) | 创新成就（ATI系统） |
| ATI | Associated Technologies, Inc. | 联合技术公司。 |
| ATI | Activist's Times Incorporated | 激进的时代 |
| ATI | Agence du Traitement de l'Information | 杜Traitement de fixation 'Information结论 |
| ATI | Automatic Test Inhibit | 自动测试抑制 |
| ATI | Air Technical Index | 空军技术索引 |
| ATI | Advanced Training Institute (International homeschool group) | 高级培训学院（国际家庭学校集团） |
| ATI | Accessible Technologies Inc. (supercharger manufacturer) | Accessible Technologies Inc.（增压器制造商） |
| ATI | Approved Training Institution | 批准的培训机构 |
| ATI | Alternatives to Incarceration | 监禁的替代方案 |
| ATI | Air Transport Indicator | 空运指示灯 |
| ATI | Automated Tactical Intelligence | 自动化战术情报 |
| ATI | Advanced Training Institute (India) | 高级培训学院（印度） |
| ATI | Accelerated Technology, Inc | 加速技术公司 |
| ATI | American Trainco, Inc (Centennial, CO) | 美国列车公司（Centennial，CO） |
| ATI | Any Three Initials (band) | 任意三个首字母（乐队） |
| ATI | Average Total Inspection | 平均总检查次数 |
| ATI | Automotive Training Institutes | 汽车培训机构 |
| ATI | Automatic Track Initiation | 自动跟踪启动 |
| ATI | Aviation Training Institute | 航空培训学院 |
| ATI | Adjusted Taxable Income | 调整后应纳税所得额 |
| ATI | Agricultural Training Institute (Philippines) | 农业培训学院（菲律宾） |
| ATI | Application Template Interface | 应用程序模板界面 |
| ATI | Alternativa de Transporte Integrado (Integrated Alternative Transportation, San Juan) | Alternativa de Transporte Integrado（圣胡安综合替代交通） |
| ATI | Any Time Interrogation | 随时询问 |
| ATI | Amplifier Technologies Inc. | 放大器技术公司。 |
| ATI | AWSIM to TBMCS Interface | AWSIM至TBMCS接口 |
| ATI | Automation of Technical Information | 技术信息自动化 |
| ATI | Access to Information | 获取信息 |
| ATI | Andromeda Training, Inc. | Andromeda培训公司。 |
| ATI | Automatic Transaction Initiation | 自动事务启动 |
| ATI | Airborne Tracker-Illuminator | 机载跟踪器照明器 |
| ATI | Air Transport Industry | 航空运输业 |
| ATI | Automated Technical Information | 自动化技术信息 |
| ATI | American Transtech Inc. (carrier for AT&T T1 circuits) | 美国的地球村。对AT&T T1线路(载体) |
| ATI | Atmospheric Technologies Inc. (Calgary, AB, Canada) | 大气技术公司（加拿大卡尔加里AB） |
| ATI | Associate of the Textile Institute | 纺织学院助理 |
| ATI | Anaesthetists in Training in Ireland | 爱尔兰培训麻醉师 |
| ATI | AudioTechnologies Inc | 音频技术公司 |
| ATI | Array Technology Inc. (manufacturer of hardware/software products) | 阵列技术有限公司。(生产硬件/软件产品) |
| ATI | Applied Technology Institute | 应用技术研究所 |
| ATI | Aware Technology International (UK) | Aware技术国际（英国） |
| ATI | Albuquerque Technology Incubator | 阿尔伯克基科技孵化器 |
| ATI | Artillery Target Intelligence | 炮兵目标情报 |
| ATI | Advanced Technology Institute | 先进技术研究所 |
| ATI | Advanced Technologies Incorporated | 先进技术公司 |