| Abbreviation | Definition |
|---|---|
| MBLS | Midwest Business Librarian Summit |
| MBPC | Matter Belong Persist Conference |
| MCAA | Midwest Conference on Asian Affairs |
| MCAC | Metropolitan Collegiate Athletic Conference |
| MCAC | Midlands Collegiate Athletic Conference |
| MCAC | Minnesota College Athletic Conference |
| MCBC | Midwest Craft Brewers Conference |
| MCC | Mid Columbia Conference |
| MCCT | Maastricht Consensus Conference on Thrombosis |
| MCDOC | Mid Continent Digital Oilfield Conference |
| MCE | Meetings Conferences Events |
| MCEC | Mennonite Conference of Eastern Canada |
| MCH | Methodist Conference Home |
| MCHC | Michigan Collegiate Hockey Conference |
| MCIC | Midwest Culturally Inclusive Conference |
| MCIS | Moscow Conference on International Security |
| MCLC | McDonald Cadet Leadership Conference |
| MCLC | McDonald Conference for Leaders of Character |
| MCMC | IEEE Multi-Chip Module Conference |
| MCMC | Macquarie Computing Mini Conference |