| Abbreviation | Definition |
|---|---|
| MOO | Met Office Online |
| MOSC | Malaysia Open Source Conference |
| MOVPE | IEEE/LEOS International Conference on Metal-Organic Vapor Phase Epitaxy |
| MPC | Main Planning Conference |
| MPIC | Malaysia Polymer International Conference |
| MPIDC | Message Passing Interface Developer's Conference |
| MPPOI | Massively Parallel Processing using Optical Interconnections |
| MPRSD | International Symposium on Machine Processing of Remotely Sensed Data |
| MPS | The Mixshow Power Summit |
| MRD | Workshop on the Management of Replicated Data |
| MRDC | Multicultural Recruitment Day Conference |
| MRF | Mineral Resources Forum |
| MRLC | Mississippi Religious Leadership Conference |
| MRT | IEEE Micro-Robots and Tele-operators Workshop |
| MS | Motor Ship |
| MSAC | Maryland Student Affairs Conference |
| MSAC | Mid State Athletic Conference |
| MSAN | International Conference on Multimedia Services and Access Networks |
| MSBC | Mayor's Small Business Conference |
| MSBC | Michigan Sport Business Conference |