JKJ
| Acronym | Definition |
|---|---|
| JKJ | Jerome K. Jerome (1859-1927; author) |
| JKJ | Johnson, Kendall & Johnson, Inc. (insurance) |
| JKJ | Jack Killed Jill (band) |
| JKJ | Jaddu Ki Jappi (Hindi: Magical Hug) |
| JKJ | JAERI (Japan Atomic Energy Research Institute)-KEK (Ko Enerugi Kasokuki Kenkyu Kiko) Joint Project (physics; Tsukuba, Japan) |