| Abbreviation | Definition |
|---|---|
| CMA | Columbia Museum of Art |
| CMA | Columbus Museum of Art |
| CMAA | California Museum Of Ancient Art |
| CMAC | Coalition of Museum and Art Centers |
| CMAC | Coalition of Museums and Art Centers |
| CMAD | Columbus Museum of Art and Design |
| CMAG | Canberra Museum and Gallery |
| CMAS | Chicagoland Marine Aquarium Society |
| CMC | Canadian Museum of Civilization (Ottawa, Ontario) |
| CMCC | Canadian Museum of Civilization Corporation |
| CMCP | Canadian Museum of Contemporary Photography |
| CMFA | Cape Cod Museum of Fine Arts |
| CMFA | Cape Museum of Fine Arts |
| CMFA | City Museum of Fine Arts |
| CMHR | Canadian Museum for Human Rights |
| CMHR | Canadian Museum of Human Rights |
| CMLI | Children's Museum and Library Inc |
| CMN | Canadian Museum of Nature |
| CMOA | Carnegie Museum of Art |
| CMOA | Cleveland Museum of Art |