| อักษรย่อ | คำเต็ม | รายละเอียด |
| F / B | Food and Beverage | |
| F / O | Front Office | |
| F. / Fl. / Fr. | Floor | |
| F.A.O | Food and Agriculture Organization of the United Nations | |
| f.o.a. | for the attention of | |
| Fac.Oper. | Factory Operator | |
| FAO | Food and Agriculture Organization | |
| FAQ | Frequently asked questions | |
| FB | Facebook | |
| FBI | Federal Bureau of Investigation | |
| FBT | FootBallThai | |
| FDA | Food and Drug Administration | |
| Feb. | February | |
| FIFA | Fédération Internationale de Football Association | |
| FIFO | First In, First Out | |
| Flr | floor | |
| FNA | Fine Needle Aspiration | |
| FOB | Free on Board หรือ Freight on Board | |
| Ft | foot | |
| FTA | Free trade area | |
| FTP | File Transfer Protocol | |
| FWVGA | Full Wide Video Graphics Array | |
| Fx | Fracture | |
| fyi | for your information | |
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