MRFF
| Acronym | Definition |
|---|---|
| MRFF | Military Religious Freedom Foundation (Albuquerque, NM) |
| MRFF | Macquarie River Food and Fibre (Australia) |
| MRFF | Massenkoff Russian Folk Festival (est. 1975; various locations) |
| MRFF | McGaw Resident Fellow Forum (Graduate Medical Education; Northwestern University; Chicago, IL) |