| Abbreviation | Definition |
|---|---|
| JFDI | Just Focus and Do It |
| JFK | Junior Fellowship Kidz |
| JFM | Junior Fire Marshal |
| JFT | Jackson Federation of Teachers |
| JFT | Jefferson Federation of Teachers |
| JFW | Junior Forest Wardens Club |
| JGC | Joint Guidance Committee |
| JGE | Journal of General Education |
| JH | Junior High |
| JHCC | Johns Hopkins Children's Center |
| JHH | Jiskha Homework Help |
| JHS | Junior High School |
| JHSF | Joseph Henry Science Fair |
| JHT | Jersey Heritage Trust |
| JICE | Journal for International Counselor Education |
| JICE | Journal of International and Comparative Education |
| JIF | Juniata Instructors of the Future |
| JIL | Just Inside Language |
| JILL | Journeying Intelligent Learning Lifeform |
| JIP | Japanese Is Possible |