| Abbreviation | Definition |
|---|---|
| CDM | Children's Discovery Museum |
| CDM | Creative Discovery Museum |
| CFAM | Cornell Fine Arts Museum |
| CFFM | Canadian Federation of Friends of Museums |
| CFM | Center for the Future of Museums |
| CGW | Corning Glass Works |
| CHAB | Confederate Historical Association of Belgium |
| CHAD | Cultural And Historical Artifacts Database |
| CHIN | Canadian Heritage Information Network |
| CHM | Chicago History Museum |
| CHM | Computer History Museum |
| CHOM | Children's Hands On Museum |
| CHPA | Cultural Heritage Protection Act |
| CIAA | Circle of Inner Asian Art |
| CIMI | Computer Interchange of Museum Information |
| CJM | Contemporary Jewish Museum |
| CLMF | China Lake Museum Foundation |
| CMA | Children's Museum of Arts |
| CMA | Children's Museum of the Arts |
| CMA | Cleveland Museum of Art |