MECO
| Acronym | Definition |
|---|---|
| MECO | Main Engine Cutoff |
| MECO | Muon-Electron Conversion |
| MECO | Massachusetts Electric Company |
| MECO | Meetings Community (website) |
| MECO | Magnetospheric Eternally Collapsing Object (alternative to a black hole) |
| MECO | Modern Engineering Company, Inc. |
| MECO | Major Command Equipment Control Officer |
| MECO | McDonald Equipment Company |
| MECO | Mission Économique (French: Economic Mission) |
| MECO | Magnetic, Eternally Collapsing Object (physics) |