| Abbreviation | Definition |
|---|---|
| COTA | Central Ohio Teachers Association |
| COTA | Childrens Organ Transplant Association |
| COTA | Chinese Overseas Transportation Association |
| COTA | Clarke Oconee Tennis Association |
| COTA | Columbia Observed Trials Association |
| COTPA | Central Ohio Tractor Pullers Association |
| COTPA | Central Ontario Tractor Pullers Association |
| COUTA | Confederation Of Uganda Tourism Association |
| COVA | Central Oregon Visitors Association |
| COWA | California Onsite Water Association |
| COWA | Central Oklahoma Woodturners Association |
| COWA | Central Otago Winegrowers Association |
| COWA | Companionship Of Works Association |
| COWWA | Central Ontario Water Works Association |
| CPA | California Psychological Association |
| CPA | Central Protective Association |
| CPA | Chinese Progressive Association |
| CPA | Commonwealth Pharmaceutical Association |
| CPA | Composite Panel Association |
| CPA | Contract Packaging Association |