| Acronym | Definition |
|---|
| CMSO | Chief Marketing and Strategy Officer (American Solar Direct) |
| CMSO | Center for Medicaid and State Operations |
| CMSO | Consultation Médico-Sociale d'Orientation (French head trauma victim evaluation institution) |
| CMSO | Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas |
| CMSO | Crédit Mutuel du Sud-Ouest |
| CMSO | Canada on the Move: Step One |
| CMSO | Computer-Integrated Manufacturing for Multi-Supplier Operations |
| CMSO | Commercial Manager Store Operations (Marks and Spencer; UK) |
| CMSO | Club Municipal Sportif d'Oissel (French: Oissel Municipal Sporting Club) |
| CMSO | Chicago Metropolitan Symphony Orchestra (Illinois) |