| Rank | Abbreviation | Meaning |
|---|
| ***** | MRMA | Medical Risk Management Associates, LLC
| |
| *** | MRMA | Marion Regional Manufacturers Association
| |
| *** | MRMA | Myanmar Rice Millers Association
| |
| ** | MRMA | Multiple Resource Management Area
| |
| ** | MRMA | Masvingo Regional Mathematics Association
| |
| * | MRMA | Minnesota Retail Merchants Association
| |
| * | MRMA | mitral regurgitant jet mapping area
| |
| * | MRMA | Meet to Reach Mutual Agreement
| |
| * | MRMA | Market Risk Management and Analysis
| |
| * | MRMA | McArthur Resource Management Association, Inc.
| |
| * | MRMA | Midwest Radio and Music Association
| |
| * | MRMA | Minnesota Records Management Act
| |
| * | MRMA | Mississippi River Maple Association
| |
| * | MRMA | Multi-Receiver, Multiple Access
| |
| * | MRMA | Mars Rover Manager's Associate
| |
| * | MRMA | Moili'ili Resident Managers' Association
| |
| * | MRMA | Marc Roelofs Marketing Advies
| |
| * | MRMA | Miami Research Marketing and Advertising, Inc.
| |
| * | MRMA | Miramichi Regional Multicultural Association
| |
| * | MRMA | Michael Reese Medical Associates
| |
| * | MRMA | Mississippi River Maritime Association
| |
| * | MRMA | Montreal Railroad Modelers Association
| |
| * | MRMA | Max Rowley Media Academy
| |
| * | MRMA | Marion Regional Manufacturing Association
| |
| * | MRMA | Maryland Regional Montadale Association
| |