| FLI | Atlantic Airways Faroe Islands (ICAO code) | 大西洋航空法罗群岛(ICAO代码) |
| FLI | Force Level Information | 部队级别信息 |
| FLI | Fuel Level Indicator | 燃油油位指示器 |
| FLI | Flexible Line Interpretation (graphics format on 8-bit computers) | 灵活的线路解释(8位计算机上的图形格式) |
| FLI | Fos-Like Immunoreactivity (neuroscience) | Fos样免疫反应性(神经科学) |
| FLI | Federation of Lasallian Institutions | 拉萨利机构联合会 |
| FLI | Flick (Motion Video Format) | Flick(运动视频格式) |
| FLI | Foreign Language Institute | 外国语学院 |
| FLI | Fluorescence Line Imager | 荧光线成像仪 |
| FLI | Foreign Language Interface | 外语界面 |
| FLI | fetal-liver infusion | 胎肝输注 |
| FLI | flash labelling index | 闪光标记指数 |
| FLI | Tex font library (EmTeX) | Tex字体库(EmTeX) |
| FLI | Fuzzy Logic Inferencing | 模糊逻辑推理 |
| FLI | AutoDesk FLIC format Animation file | AutoDesk FLIC格式动画文件 |
| FLI | Federation De Lutte International | 国际路德联合会 |