| Abbreviation | Definition |
|---|---|
| JFT | Just File Transfer |
| JINI | Java Intelligent Network Infrastructure |
| JIP | Java Internet Project |
| JKM | Journal of Knowledge Management |
| JMPF | Java Message Passing Framework |
| JMX | Java Management extension |
| JNLP | Java Network Launching Protocol |
| JNN | Joint Network Node |
| JOJI | Jack Out Jack In |
| JOLT | Java Open Language Toolkit |
| JPG | Joint Photographic Experts Group |
| JSL | Japanese Service Link |
| JWS | Java Web Service |
| JWT | Java Windows Terminal |
| JXTA | Juxtapose |
| k8s | kubernetes |
| KAN | Knowledge Awareness Networking |
| KANDU | Ka/Ku-band Aircraft Networking Unit |
| KCN | Knowledge Centric Networking |
| KCNG | Kansas City Networking Group |