| Abbreviation | Definition |
|---|---|
| MESL | Museum of Eastern Shore Life |
| METC | Museum of Early Trades and Crafts |
| MFA | Museum of Fine Arts |
| MFAH | Museum of Fine Arts Houston |
| MFAH | Museum of Fine Arts, Houston |
| MFCG | Museo Fundacion Cristobal Gabarron |
| MFH | Museum of Florida History |
| MFTQ | Museum of the Fur Trade Quarterly |
| MGC | Museums and Galleries Commission |
| MGCI | Museums Galleries and Collections Institute |
| MGLI | Museums and Galleries Lifelong Learning Initiative |
| MGM | Mambo Gallery Management |
| MHAM | Margaret Harwell Art Museum |
| MHCM | Mid Hudson Children's Museum |
| MHM | Moluks Historisch Museum |
| MHNC | Musée d'Histoire Naturelle La Chaux-de-Fonds |
| MHO | Minnesota Historical Organization |
| MHOF | Mining Hall Of Fame and museum |
| MIA | Malaysian Institute of Art |
| MIA | Minneapolis Institute of Arts |