FJB
| Acronym | Definition |
|---|---|
| FJB | Força Jovem Brasil (Portuguese: Brazil Youth Force) |
| FJB | Foundation for the Junior Blind (Los Angeles, CA) |
| FJB | Festival Jajanan Bango (Indonesia) |
| FJB | Fuse Junction Box |
| FJB | Forum Jual Beli (Indonesian: Buying and Selling Forum; Indonesia) |
| FJB | Fender Jazz Bass |
| FJB | Foyer des Jeunes de Beaurepaire (French youth organization) |
| FJB | Freelance Job Bank |
| FJB | Federal Judicial Building (Canada) |