MCOS
| Acronym | Definition |
|---|---|
| MCOS | Managed Care Organization (health) |
| MCOS | Multicultural Council of Saskatchewan (also seen as MCS; Canada) |
| MCOS | Minimum Conditions of Satisfaction (contracting) |
| MCOS | Mercury Computer Operating System |
| MCOS | mixed coronary obstructive syndrome |
| MCOS | Modern Church of Satan |
| MCOS | Multi-Channel Objective System |
| MCOS | Material Cost of System |