| Abkürzung | Bereich | Staat | Bedeutung |
| F | Physik | Kraft | |
| f | Physik | Brennweite | |
| Frequenz | |||
| Reibungszahl | |||
| FAC | Computer | File Access Code | |
| FAG | Gesetz | D | Fernmeldeanlagengesetz |
| FAP | Computer | File Access Protocol | |
| FAQ | Computer | Frequently Asked Questions (häufig gestellte Fragen) | |
| FAT | Computer | File Allocation Table | |
| FAX | Technik | Faksimile | |
| FBI | Polizei | USA | Federal Bureau of Investigation |
| FCB | Computer | File Control Block | |
| FD | Computer | Floppy Disk | |
| Haus | GB | Front Door | |
| FDC | Computer | Floppy Disk Controller | |
| FDD | Computer | Floppy Disk Drive | |
| FDISK | Software | Fixed Disk | |
| FEP | Computer | Front End Processor | |
| FF | Magazin | D | Fix und Foxi |
| Computer | Flip Flop | ||
| Software | Form Feed | ||
| FLOP | Computer | Floating Point Operation | |
| FLOPS | Computer | Floating Point Operations per Second | |
| FMS | Technik | D | Fernmeldesystem |
| FOC | Technik | Fiber Optic Cable (Glasfaserkabel) | |
| FORTRAN | Software | Formula Translator (Programmiersprache) | |
| FPP | Computer | Fast Parallel Port | |
| Floating Point Processor | |||
| FPS | Technik | Fast Packet Switching | |
| Frames Per Second | |||
| FPU | Computer | Floating Point Processor Unit | |
| FRAG | Computer | Fragment | |
| FRAM | Computer | Ferroelectric Random Access Memory | |
| FS | Allgemein | D | Führerschein |
| Computer | File System | ||
| FSD | Computer | File System Driver | |
| FSK | Allgemein | D | Führerschein Klasse |
| FTP | Computer | File Transfer Protocol | |
| FUI | Computer | File Update Information | |
| FUNC | Computer | Function | |
| G | Physik | Schubmodul | |
| Gewichtskraft | |||
| g | Physik | örtliche Fallbeschleunigung | |
| GAU | Allgemein | D | Größter anzunehmender Unfall |
| GB | Staat | Great Britain | |
| Einheit | Gigabyte | ||
| GDI | Computer | Graphics Device Interface | |
| GEH | Haus | D | Gasetagenheizung |
| ger | Staat | Germany (Bundesrepublik Deutschland) | |
| Gew. | Allgemein | D | Gewerbe |
| ggf. | Allgemein | D | gegebenenfalls |
| GIF | Software | Graphic Interchange Format | |
| Gm | Einheit | Gigameter | |
| GMT | Zeitzone | Greenwich Mean Time | |
| GND | Technik | Ground (Erdung) | |
| GPF | Computer | General Protection Fault | |
| GPI | Software | Graphics Programming Interface | |
| GPIB | Computer | General Purpose Interface Bus | |
| GRE | Computer | Graphics Engine | |
| Grundst. | Haus | D | Grundstück |
| GS | Technik | D | Geprüfte Sicherheit |
| Software | Group Separator | ||
| GSX | Computer | Graphics System Extension | |
| GUI | Computer | Graphical User Interface (Grafische Benutzeroberfläche) |