| Abbreviation | Definition |
|---|---|
| MCPC | Multicultural Conference Planning Committee |
| MCPFE | Ministerial Conference on the Protection of Forests in Europe |
| MCPI | Medical Conference Planners International |
| MCS | IEEE Microwave and Millimeter-wave Monolithic Circuits Symposium |
| MCSF | Midwest Consolidated Security Forum |
| MC-SS | International Workshop on Multi-Carrier Spread Spectrum |
| MCSW | Mississippi Conference on Social Welfare |
| MCTC | Military Committee Terminology Conference |
| MCTM | Manipal Conference on Technology Management |
| MCVC | Music City Veterinary Conference |
| MCWC | Mendocino Coast Writers Conference |
| MCWC | Montrose Christian Writers Conference |
| MDCC | Mason Dixon Christian Conference |
| MDER | Medical Device Expert Roundtable |
| MDLC | Michigan Digital Learning Conference |
| MDMC | Midwest Digital Marketing Conference |
| MDSP | Multi-dimensional Signal Processing Workshop |
| MEAC | Mid Eastern Athletic Conference |
| MEBIS | Middle East Banking Innovation Summit |
| MEC | Microsoft Exchange Conference |