| Acronym | Definition |
|---|
| CSOS➣Center for Social Organization of Schools |
| CSOS➣Controlled Substances Ordering System (US DEA) |
| CSOS➣Central States Orthopedic Specialists (Oklahoma) |
| CSOS➣Company Share Option Scheme (various organizations) |
| CSOS➣California School of Organizational Studies |
| CSOS➣Cypress School of Skating (Medicine Hat, Alberta, Canada) |