| Abbreviation | Definition |
|---|---|
| MCLM | Mayme A Clayton Library Museum |
| MCM | Minnesota Children's Museum |
| MCML | Manitoba Crafts Museum and Library |
| MCN | Museum Computer Network |
| MCNY | Museum of the City of New York |
| MCZ | Museum of Comparative Zoology |
| MDAD | Museum of Decorative Art and Design |
| MDAD | Museum of Decorative Arts and Design |
| MDBA | Museum District Business Alliance |
| MDPP | Museum Definition Prospects and Potentials |
| MEAA | Museum of East Asian Art |
| MEEP | Museum Education and Employment Program |
| MEEP | Museum Education Experience Program |
| MEG | Museum Exhibit Guide |
| MEG | Museum Exhibition Guide |
| MEM | Museum Education Monitor |
| MERC | Museum Employment Resource Center |
| MERF | Museum Education Registration Form |
| MESDA | Museum of Early Southern Decorative Arts |
| MESL | Museum Educational Site Licensing |