| Abbreviation | Definition |
|---|---|
| CANWA | Chinese Association of North West Arkansas |
| CANY | Canadian Association of New York |
| CANZA | Ceylon A N Z Association |
| CANZA | Czech Australian New Zealand Association |
| CAO | Culture Association Originality |
| CAOA | Calumet Athletic Officials Association |
| CAOA | Capitol Area Officials Association |
| CAOA | Castor Association of America |
| CAOA | Cigar Association Of America |
| CAOA | Colorado Airport Operators Association |
| CAOB | Construction Association of Bermuda |
| CAODC | Canadian Association of Oilwell Drilling Contractors |
| CAOE | Canadian Association of Opticianry Educators |
| CAOEC | Canadian Association Of Energy Contractors |
| CAOF | Catholic Association of Foresters |
| CAOG | Central Association of Obstetricians and Gynecologists |
| CAOG | Central Association of Obstetricians Gynecologists |
| CAOH | Cancer Association of Havasu |
| CAOLAS | Community Association Of Lochs And Sounds |
| CAOMA | Council of Acupuncture and Oriental Medicine Associations |