FJ
| Acronym | Definition |
|---|---|
| FJ | Fiji |
| FJ | Funny Junk |
| FJ | FootJoy (golf shoes) |
| FJ | Food Journal |
| FJ | Finger Jointed (building materials) |
| FJ | Final Judgement (gaming clan) |
| FJ | Field Judge (football) |
| FJ | Fiber Jack (fiber optics connection) |
| FJ | Fukuoka Jisho (Japan) |
| FJ | Fahnenjunker (German) |
| FJ | Fart Jar |
| FJ | Frost Joke (gaming, Ragnarok) |
| FJ | Florida Jaycees |
| FJ | Familiarization Job Training |