| Abbreviation | Definition |
|---|---|
| MOK | Media Over-Kill |
| MOM | Media Operations Manager |
| MONO | MONOphonic |
| MoS | Manual of Style |
| MOS | Metal Oxide Semiconductor |
| MOTP | Members Of The Press |
| MPEG | Motion Picture Experts Group |
| MPO | Medical Product Outsourcing |
| MQR | Michigan Quarterly Review |
| MQUP | McGill–Queen's University Press |
| MRB | Media Resource Brokering |
| MRC | Media Rights Capital |
| MREP | Media Resource Exchange Program |
| MRIR | Median Rent To Income Ratio |
| MRN | Machine Readable News |
| MRN | Marion Radio News |
| MRS | Media Recognition System |
| MS | Medium Shot |
| MSDP | Media Server Deduplication Pool |
| MSL | Multimedia Sensors Lab |