MMFN
| Acronym | Definition |
|---|---|
| MMFN | Money Matters Financial Network (radio show) |
| MMFN | MetroMedia Fiber Network |
| MMFN | Madawaska Maliseet First Nation (Canada) |
| MMFN | Mid-Michigan Freecycle Network (recycling) |
| MMFN | Fireman, Machinists Mate Striker (naval rating) |