| Abbreviation | Definition |
|---|---|
| JLAC | Japanese Language Appreciation Club |
| JMAC | Japanese Media Appreciation Club |
| JMAC | Jewish Monthly Article Club |
| JMFC | Julian McMahon Fan Club |
| JMKC | Junior Mountaineer Kids Club |
| JMPC | Jogja Mega Pro Club |
| JNC | Junior Nature Club |
| JNFC | Jax Navy Flying Club |
| JOAC | Jupiter Owners Auto Club |
| JOC | Jensen Owners' Club |
| JOC | Jewish Outdoors Club |
| JOCC | Jharkhand Open Coffee Club |
| JOCO | Jaguar Owners Club of Oregon |
| JOCV | Jeep Owners Club of Victoria |
| JOSC | Jakarta Offshore Sailing Club |
| JPC | John Purdue Club |
| JPTC | Jamaica Plain Tuesday Club |
| JPTC | Jellicoe Park Tennis Club |
| JRAC | James River Aquatic Club |
| JRBC | Juanita Rebels Booster Club |