| Abbreviation | Definition |
|---|---|
| MFFL | Metroplex Flag Football League |
| MFFL | Milton Flag Football League |
| MFFL | Mississauga Flag Football League |
| MFFL | Mobile Fantasy Football League |
| MFFL | Modar Fantasy Football League |
| MFL | Madden Football League |
| MFL | Maladesia Football League |
| MFL | Marshalltown Football League |
| MFL | Maui Football Links |
| MFL | Mcadoo Football League |
| MFL | Meadowlands Football League |
| MFL | Metroplex Flag Football League |
| MFL | Minor Football League |
| MFL | Mutant Football League |
| MFOA | Manitoba Football Officials Association |
| MFOA | Metrolina Football Officials Association |
| MFPA | Malta Football Players Association |
| MFRA | Manitoba Football Referees Association |
| MFSD | Metropolitan Football Stadium District |
| MGFL | Mid Gippsland Football League |