| Abbreviation | Definition |
|---|---|
| MVN | Mississippi Valley Network |
| MVS | Multi Video System |
| MVS | Multiple Virtual Support |
| MVS/ESA | Multiple Virtual System / Extended System Architecture |
| MVS/XA | Multiple Virtual System / Extended Architecture |
| MVSCP | Multiple Virtual System Configuration Program |
| MWG | Metadata Working Group |
| MWG | Methods Working Group |
| MWR | Most Wanted Response |
| MX | Meta X |
| MySQL | open source database software |
| MZR | Marketing Znanje Razvoj |
| N/A | No value Available |
| NA | Null Acl |
| NACL | Net Activex Command Language |
| NACT | Neural Adaptive Control Technology |
| NAF | Non Adjacent Form |
| NAF | Not Another Font |
| NAK | Negative Acknowledgement |
| NAP | Network Access Point |