| Abbreviation | Definition |
|---|---|
| XTWC | Xtreme Trampoline Championship Wrestling |
| XTW-NEW | Xtreme Total Wrestling - New Era Wrestling |
| XUA | Xavier University Athletics |
| XVB | Xtreme VolleyBall |
| XVW | Xtreme Violence and Wrestling |
| XW | Xpert Warrior |
| XW | Xtreme Wrestling |
| XWA | Xtreme Wrestling Association |
| XWB | Xtreme Wrestling Banner |
| XWC | X- Wing Commander |
| XWC | Xtreme Wrestling Championship |
| XWE | Xtreme Wrestling Entertainment |
| XWF | Xtreme Wrestling Federation |
| XWG | XWarGames.net |
| XWL | X- Wing Legacy |
| XWL | Xtreme Wrestling League |
| XWO | Xtreme World Order |
| XWR | Xtreme Wrestling Revolution |
| XWS | Xtreme Water Sports |
| XWW | Xtreme World Wrestling |