| Abbreviation | Definition |
|---|---|
| MAC | Media Access Control |
| MAC | Media Access Controller |
| MAC | Medium Access Control |
| MACAW | Multiple Access Collision Avoidance for Wireless |
| MACC | MGX-8550 ATM Concentrator Configuration |
| MACS | Modem Access Control System |
| MACS | Multi-Access Communication Server |
| MAD | Managing All Documents |
| MADCAP | Multicast Address Dynamic Client Allocation Protocol |
| MAE | Metropolitan Area Ethernet |
| MAF | Master Address File |
| MAG | Mobile Agent Group |
| MAGE | Marburg Ad-hoc Grid Environment |
| MAGIC | Media Accelerated Global Information Carrier |
| MAGIC | Messaging Addressing Gateway Internet And Control |
| MAK | Media Access Key |
| MAN | Metropolitan Area Network |
| MANET | Mobile Ad-Hoc NETwork |
| MANO | Management and Orchestration |
| MARS | Mac Address Registration System |