| Abbreviation | Definition |
|---|---|
| IWS | Internet Wrestling Syndicate |
| IWZ | Internet Wrestling Zone |
| JAPW | Jersey All Pro Wrestling |
| JBW | Johns Backyard Wrestling |
| JCW | Jersey Championship Wrestling |
| JCW | Juggalo Championship Wrestling |
| JCW | Juggalo Championshit Wrestling |
| JCW | Just Cause Wrestling |
| JJIF | Ju-Jitsu International Federation |
| JPW | Just Pro Wrestling |
| JSW | Jersey Shore Wrestling |
| JWA | Janesville Wrestling Alliance |
| JWE | Jersey Wrestling Enterprise |
| KCW | Kentuckiana Championship Wrestling |
| KCW | Keystone Championship Wrestling |
| KCW | Kingswood Championship Wrestling |
| KES | Killer Elite Squad |
| KFW | Kenton Fake Wrestling |
| KOM | King Of the Mat |
| LAWA | Los Angeles Wrestling Association |