| FLIRT | Forward Looking Infrared Tracking | 前视红外跟踪 |
| FLIRT | Fast Linear Intermediate Range Transmission Loss Model | 快速线性中间距离传输损耗模型 |
| FLIRT | Feinberg Library Internet Resource Tracker | 范伯格图书馆互联网资源跟踪器 |
| FLIRT | Flinker Leichter Innovativer Regional-Triebzug (German train) | Flinker Leichter Innovativer Regional Triebzug（德国列车） |
| FLIRT | Fast Library Identification And Recognition Technology | 图书馆快速识别技术 |