MARR
| Acronym | Definition |
|---|---|
| MARR | Multiple Access Rural Radio |
| MARR | Magazzini Alimentari Riuniti Riminesi (Italian grocery store) |
| MARR | Minimum Acceptable Rate of Return |
| MARR | Mission Assignment Reimbursement Request |
| MARR | Marrucinian (linguistics) |
| MARR | Ministry of Aboriginal Relations and Reconciliation (British Columbia, Canada) |
| MARR | Multi Axis Radio Range |
| MARR | Merger and Acquisition Research Report |
| MARR | Major Accident Reconstruction and Review (King County) |