| Abbreviation | Definition |
|---|---|
| FFR | For Future Release |
| FFSE | Formal Foundations of Software Evolution |
| FFSL | Floodgap Free Software License |
| FFTS | Food for Thought Software |
| FFW | Filter File With .... |
| FFX | Flow Fact in XML |
| FGOL | Future Games of London |
| FGOS | Fyfe Group Operating System |
| FHMM | Factorial Hidden Markov Model |
| FI | Filterability Index |
| FIASCO | Functional Image Analysis Software - Computational Olio |
| FIASCO | Functional Image Analysis Software Computational Olio |
| FICS | Free Internet Chess Server |
| FIESTA | Fluoresecent Image Evaluation Software for Tracking and Analysis |
| FIG | FIG Is Good |
| FIG | Flash Image Gallery |
| FIMS | Fleet Image Management System |
| FIMS | Forms Interface Management System |
| FINAL | FastLane Integrated Network Application Language |
| FINE | Fine Is Not Elm |