| Abbreviation | Definition |
|---|---|
| JAH | Jazz After Hours |
| JAM | Japan Animation song Makers |
| JAM | Japanese Animated Movie |
| JAM | Just Another Magazine |
| JAN | Japanese American Nation |
| JAN | Japanese Article Numbering |
| JASPER | The Japanese Animation Super Premier Entertainment Review |
| JAV | Japanese Action Video |
| JAW | Junior Achievement Weekly |
| JB | Jungle Beast |
| JBGI | Journal Broadcast Group, Inc. |
| JBN | Jericho Broadcast Network |
| JBN | New Jersey Jackals Baseball Network |
| JBU | Just Between Us magazine |
| JC | The Jewish Chronicle |
| JCII | Japan Camera Inspection Institute |
| JCL | Julius Caesar Lovers |
| JCN | The Jewish Communications Network |
| JCPI | Jurnal Cerita Pendek Indonesia |
| JCSH | JihoCesky Sbornik Historicky |