| Abbreviation | Definition |
|---|---|
| COSR | Council of School Representatives |
| COSSVP | Council Of Student Service Vice Presidents |
| COSSVP | Council Of Student Services Vice Presidents |
| COST | Council on State Taxation |
| COTA | Council On The Ageing |
| COTA | Councils on the Ageing |
| COTAL | Council of Traditional Authority Leaders |
| COTE | Council on the Environment |
| COTSF | Council of the Secret Fire |
| COU | Council |
| COUL | Council of University Librarians |
| COUNC | Council |
| COUNC | Councils |
| COUP | Council On Utility Policy |
| COVA | Council of Volunteer Administrators |
| COVC | Council Of Vice Chancellors |
| COVP | Council on Veterans Programs |
| COW | Council Of War |
| COWM | Council of Wise Men |
| COWU | Council Of Water Utilities |