| Acronym | Definition |
|---|
| JCSS➣Jaffee Center for Strategic Studies |
| JCSS➣Jesus Christ Superstar (musical/movie) |
| JCSS➣Japanese Cognitive Science Society |
| JCSS➣Journal of Cyberspace Studies (peer-review; UNESCO) |
| JCSS➣Journal of Computer and Systems Sciences |
| JCSS➣Joint Communications Support Squadron |
| JCSS➣Jefferson County School System (various locations) |
| JCSS➣Joint Committee of Structural Safety (Switzerland) |