| FIT | Final Integration and Test | 最终集成和测试 |
| FIT | Forward Incident Team | 前方事故小组 |
| FIT | Functional Integration Test | 功能集成测试 |
| FIT | Force Integration Training | 部队整合训练 |
| FIT | Frequency, Intensity, and Time | 频率、强度和时间 |
| FIT | Formation Interval Test | 地层间隔测试 |
| FIT | Fault Isolation Technology | 故障隔离技术 |
| FIT | Facility Instructor Training (FAA) | 设施教员培训（FAA） |
| FIT | Facility for Interoperability Testing | 互操作性测试设施 |
| FIT | Fully Independent Traveller (tourist not part of tour group) | 完全独立旅行者（不属于旅行团的游客） |
| FIT | Fault Isolation Tree | 信息分离树型结构图 |
| FIT | Flight Information Temporary (FAA notices to airmen) | 临时航班信息（FAA通知飞行员） |
| FIT | FÉdÉration Internationale des Traducteurs (French: Internationale Federation of Translaters) | FÉdÉration Internationale des Traducteurs (French: Internationale Federation of Translaters) |
| FIT | Foundation for Intercultural Exchange (non-profit high school student exchange program) | 跨文化交流基金会（非营利高中学生交流计划） |
| FIT | Formation Integrity Test (oil drilling) | 地层完整性测试（石油钻井） |
| FIT | Field Investigation Team | 现场调查组 |
| FIT | Failure Detection & Identification | 故障检测和鉴定 |
| FIT | Fully Inclusive Tour (travel services) | 全包旅游（旅行服务） |
| FIT | Fitting-Out | 装修 |
| FIT | Focus Integration Team | 焦点集成团队 |
| FIT | For Information Translation | 用于信息翻译 |
| FIT | Fireman In Training | 消防员培训 |
| FIT | Focused Industry Training | 重点行业培训 |
| FIT | First In Training | 首次参加培训 |
| FIT | Focused Individual Training | 重点个人培训 |
| FIT | Fluid Impingement Technology | 流体冲击技术 |
| FIT | Future Infantry Technologies | 未来步兵技术 |
| FIT | Film Industry Training | 电影行业培训 |
| FIT | Framework for Integrated Tests | 集成测试框架 |
| FIT | FederaciÓn Internacional de Transporte | FederaciÓn Internacional de Transporte |
| FIT | Farm Implements and Tools | 农场机具和工具 |
| FIT | Fully Independent Traveller | 完全独立的旅行者 |
| FIT | Fachgemeinschaft Industrie-Tieraerzte (Germany) | Tieraerzte工业工厂（德国） |
| FIT | Frequency, Intensity, Time | 频率、强度、时间 |
| FIT | Filtering Integration Technology | 过滤集成技术 |
| FIT | Food Internet and Television | 食品互联网和电视 |
| FIT | Flexible Image Transport System Graphics and data | 灵活的图像传输系统图形和数据 |
| FIT | Fit and Independent Traveler | 适合独立旅行者 |
| FIT | Frequent Independent Traveller | 经常独立旅行的人 |
| FIT | Field Interactive Training | 现场互动培训 |
| FIT | Foundation to Improve Television | 改善电视的基础 |
| FIT | Facilities Improvement Team | 设施改善小组 |
| FIT | Failure unIT (reliability analysis) | 故障unIT（可靠性分析） |
| FIT | Foreign Independent Traveler (travel industry; lone travellers as opposed to groups) | 外国独立旅行者（旅游业；单独旅行者，而不是团体） |
| FIT | Flanders Investment and Trade (Flanders, Belgium) | 法兰德斯投资与贸易（比利时法兰德斯） |
| FIT | Fashion Institute of Technology (New York) | 时尚技术学院（纽约） |
| FIT | Federazione Italiana Tennis | 意大利网球联合会 |
| FIT | Frequent Individual Traveller | 经常旅行的个人 |
| FIT | Failure In Test | 测试失败 |
| FIT | Fleet Implementation Team | 车队实施团队 |
| FIT | Frequent Independent Traveler | 经常独立旅行的人 |
| FIT | Fundamentals of Instructor Training (Red Cross) | 讲师培训基础（红十字会） |
| FIT | Face It Together (Iowa anti-drug program) | 一起面对（爱荷华州禁毒计划） |
| FIT | Feature Integration Approach (perception) | 特征集成方法（感知） |
| FIT | Finite Integration Theory | 有限积分理论 |
| FIT | File Information Table | 文件信息表 |
| FIT | Federal Investigation Team | 联邦调查组 |
| FIT | Frame Interline Transfer (image sensors) | 帧间传输（图像传感器） |
| FIT | Fleet Introduction Team | 车队介绍团队 |
| FIT | Functional Interface Translator | 功能接口转换器 |
| FIT | Failure-Inducing Thread | 导致故障的线程 |
| FIT | Frequently in Trouble | 经常遇到麻烦 |
| FIT | Fleet Installation Team | 车队安装团队 |
| FIT | Flight Instrument Trainer | 飞行仪表培训师 |
| FIT | Field Implementation Testing | 现场实施测试 |
| FIT | Fixed Itinerary Tours | 固定行程旅行 |
| FIT | First Indication of Trouble | 故障的首次指示 |
| FIT | Field Integration and Test | 现场集成和测试 |
| FIT | fusion-inferred threshold test | 融合推断阈值试验 |
| FIT | Ferret In Training | 训练中的费雷特 |
| FIT | Focused, Inspired, and Transitional | 专注、激励和过渡 |
| FIT | flanagan indusrial tests | 弗拉纳根工业试验 |
| FIT | Forum for Information Technology | 信息技术论坛 |
| FIT | fourier integral transform | 傅里叶积分变换 |
| FIT | Flexible Image Transport | 灵活的图像传输 |
| FIT | Fashion Institute Of Technology | 时尚技术学院 |
| FIT | Failures In Time | 时间上的故障 |
| FIT | Foreign Independent Travel | 外国独立旅行 |
| FIT | Failure unIT | unIT故障 |
| FIT | Fully Inclusive Tour | 全包旅游 |
| FIT | Faculty of Information Technology | 信息技术学院 |
| FIT | Fingerprint Identification Technology | 指纹识别技术 |
| FIT | Failure in Time | 时间上的失败 |
| FIT | Federal Institute of Technology (Switzerland) | 联邦理工学院（瑞士） |
| FIT | First Is Third (Camp Ozark) | 第一就是第三（奥扎克营） |
| FIT | FANS Interoperability Team | FANS互操作性团队 |
| FIT | Fitness Improvement Training | 健身改善训练 |
| FIT | Institute for Applied Information Technology (GMD, Germany) | 应用信息技术研究所（德国GMD） |
| FIT | Framework for Integrated Test | 集成测试框架 |
| FIT | Fault Isolation Test | 故障隔离试验 |
| FIT | Free International Trade | 自由国际贸易 |
| FIT | Fraunhofer Institut fÜr Angewandte Informationstechnik (German: Fraunhofer Institute for Applied Information Techno | Institut毛皮Angewandte Informationstechnik弗劳恩霍夫研究所(德国:弗劳恩霍夫应用信息技术) |
| FIT | Forest Industries Telecommunications (non-profit, provides PLMRS frequency coordination) | 森林工业电信（非盈利，提供PLMRS频率协调） |
| FIT | Fecal Immunochemical Test (InSure) | 粪便免疫化学试验（InSure） |
| FIT | Fracture Intervention Trial | 骨折干预试验 |
| FIT | Forum on Information Technology | 信息技术论坛 |
| FIT | Federal Income Tax | 联邦所得税 |
| FIT | Females in Trouble | 陷入困境的女性 |
| FIT | fluorescein isothiocyanate | 荧光素异硫氰酸酯 |
| FIT | Florida Institute of Technology | 佛罗里达理工学院 |