| Abbreviation | Definition |
|---|---|
| MDTC | Memorial Drive Tennis Club |
| MDWC | Mad Dog Wrestling Club |
| MEBC | Mullingar Elite Boxing Club |
| MECC | Miyamae English Communication Club |
| MERC | Mechatronic Engineering Robotics Club |
| MFBC | MIlwaukee Fire Bell Club |
| MFC | Mccready Fan Club |
| MFC | Middlesbrough Football Club |
| MFCC | moray firth cycling club |
| MFDC | Mid-Florida Dalmatian Club |
| MFFC | Michigan Fly Fishing Club |
| MFGC | Malta Feline Guardians Club |
| MFMC | Michigan Federation of Music Clubs |
| MFMC | Mid Florida Mustang Club |
| MFMC | Minnesota Federation of Music Clubs |
| MFSC | Mankato Figure Skating Club |
| MFSC | Maplewood Figure Skating Club |
| MFSC | Menomonee Falls Swim Club |
| MGOC | MG Owners Club |
| MGSC | Minneapolis Grand Slam Club |