| Abbreviation | Definition |
|---|---|
| COMITTE | Committee |
| COMS | Committee on Microbiological Safety |
| COO | Committee Of One |
| COOS | Committee On Online Services |
| COPA | Comité des Organisations Professionnelles Agricoles (in French) Committee of Agricultural Organizations |
| COPA | Comité des Organisations Professionnelles Agricoles (in French) Committee of Agricultural Organizationsn |
| COPC | Collection of proposals Committee |
| COPE | Committee Of Progressive Electors |
| COPE | Committee On Political Education |
| COPE | Committee On Public Enterprises |
| COPE | Committee On Publication Ethics |
| COPM | Committee on Petroleum Measurement |
| COPU | Committee On Public Undertakings |
| COPUOS | Committee on the Peaceful Uses of Outer Space |
| COPW | Committee of Professional Women |
| COR | Committee of the Regions |
| COR | Committee on Research |
| CORE | Committee On Rap Excellence |
| CORF | Committee On Radio Frequencies |
| COSA | Committee On Sustainability Assessment |