| Acronym | Definition |
|---|
| JKCS➣Journal of the Korean Chemical Society (South Korea) |
| JKCS➣John Knox Christian School (est. 1959; Ontario, Canada) |
| JKCS➣Judo-Karate Club Sportschule (German: Judo-Karate Sports Club; Germany) |
| JKCS➣Joint Knowledge Caching Server |
| JKCS➣John Keells Computer Services Ltd. |