MEC
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| MEC | Main Engine Controller | - | Organizations |
| MEC | Master Event Controller | - | Organizations |
| MEC | Master Events Controller | - | Organizations |
| MEC | Mission Events Controller | - | Organizations |
| MEC | Maine Central Railroad (AAR Reporting Mark) - Manta | - | Astronomy |