| FIDO | Free Inmate Dog Obedience (Hamilton, Ohio) | 自由囚犯狗服从（俄亥俄州汉密尔顿） |
| FIDO | Family Internet Directory Online | 家庭Internet联机目录 |
| FIDO | Functional Device Object (Microsoft Windows drivers) | 功能设备对象（Microsoft Windows驱动程序） |
| FIDO | Film in Digital Out (Kodak's first digital film format) | 电影在数字(柯达公司的第一数字电影格式) |
| FIDO | Fine Dog | 好狗 |
| FIDO | Field Integrated Design and Operations (NASA) | 现场综合设计与运行（NASA） |
| FIDO | Field Integrated Design And Operations | 现场集成设计和操作 |
| FIDO | Fog Investigation & Dispersal Operation | 雾调查和分散经营 |
| FIDO | First In Dog Obedience | 第一狗服从 |
| FIDO | Face Information Digested On-Line (Mining) | 面部信息在线摘要（采矿） |
| FIDO | Financial Information Delivered Online | 在线提供的财务信息 |
| FIDO | Freaks, Irregulars, Defects, Oddities (coin collecting) | 怪异、不规则、缺陷、怪异（硬币收集） |
| FIDO | Filter Device Object | 筛选设备对象 |
| FIDO | Film Industry Defence Organisation | 电影工业防御组织 |
| FIDO | Flight Inspection District Office | 飞行检查区办公室 |
| FIDO | Forget It Drive On | 忘记它开车 |
| FIDO | Forget It, Drive On (polite form) | 忘了吧，开车吧（礼貌用语） |
| FIDO | Firearms Intervention And Dangerous Operations | 枪支干预和危险操作 |
| FIDO | voce usata in ambiente Fidonet | Fidonet环境中的声音 |