| Abbreviation | Definition |
|---|---|
| MIW | Minnesota Independent Wrestling |
| MJWL | Metro Junior Wrestling League |
| MLW | Major League Wrestling |
| MMTW | massive Multiplayer Thumb Wrestling |
| MMW | Mickey Mclain Wrestling |
| MMWA | Mid Michigan Wrestling Association |
| MMWA | Mid Missouri Wrestling Alliance |
| MPW | Midwest Pro Wrestling |
| MPW | Millennium Pro Wrestling |
| MRW | Midwest Renegade Wrestling |
| MRW | Miz Rules Wrestling |
| MSPW | Midwestern States Pro Wrestling |
| MSWA | Maryland State Wrestling Association |
| MSWA | Mid-South Wrestling Association |
| MTW | Mutant Turtle Wrestling |
| MTXE | Mental Toughness Extra Effort |
| MVW | Maximum Velocity Wrestling |
| MVWC | Mohawk Valley Wrestling Club |
| MWA | Michigan Wrestling Association |
| MWA | Midwest Wrestling Association |