| Abbreviation | Definition |
|---|---|
| UMAA | United Martial Arts Academy |
| UMAB | Ultimate Martial Arts Board |
| UMAB | Universal Martial Arts Brotherhood |
| UMAC | United Martial Arts Center |
| UMAC | United Martial Arts Centers |
| UMMA | United Mixed Martial Arts |
| UMMAF | USA Mixed Martial Arts Federation |
| USAF | United States Aikido Federation |
| USAMA | United States Academy of Martial Arts |
| USMA | United Schools of Martial Arts |
| USMA | United States Martial Arts |
| USMAA | United States Martial Arts Association |
| VMAC | Valley Martial Arts Center |
| VMAC | Vision Martial Arts Center |
| WAMA | Westside Aerobics and Martial Arts |
| WAMA | World Academy of Martial Arts |
| WMA | Western Martial Arts |
| WMAA | World Martial Arts Association |
| WMAC | World Martial Arts Committee |
| WMAC | World Martial Arts Council |