| Acronym | Definition |
|---|
| MTRF➣Marlow Town Regatta and Festival (UK) |
| MTRF➣Minority Trainee Research Forum (various locations) |
| MTRF➣Monday, Tuesday, Thursday and Friday |
| MTRF➣Minneapolis Teachers Retirement Fund |
| MTRF➣Mezhgorie Team Rage Fever (gaming) |
| MTRF➣Module Test and Repair Facility |
| MTRF➣Moment Tensor Rate Function (seismology) |
| MTRF➣Mean Time to Repair Failures |