| Abbreviation | Definition |
|---|---|
| MTEF | Milwaukee Tennis Education Foundation |
| MTEF | Montgomery Township Education Foundation |
| MTFI | Mandala Transformation Foundation Inc |
| MTGF | Micro Tech Global Foundation |
| MTRF | Maritime Training and Research Foundation |
| MTRF | Meeting of The Rivers Foundation |
| MVF | Lawrence D. Miles Value Foundation |
| MVF | Montgomery Village Foundation |
| MWHF | Mary Washington Hospital Foundation |
| MWHF | Muhammad Waseela Hayat Foundation |
| MYLF | Massachusetts Youth Leadership Foundation |
| MZF | Mike Zimmer Foundation |
| NAAF | Native American Advancement Foundation |
| NACF | Native Arts and Cultures Foundation |
| NAF | National Anxiety Foundation |
| NAF | Netherland America Foundation |
| NAF | Netherland American Foundation |
| NAFF | North American Freedom Foundation |
| NARF | North American Racewalking Foundation |
| NARF | North American Railway Foundation |