| Abbreviation | Definition |
|---|---|
| CA | Canada Answer |
| CA | Canadian |
| CA | Canadian Alliance |
| CA | Cannabis Act |
| CAA | Canadian Acoustical Association |
| CAA | Canadian Automobile Association |
| CAA | Canadian Avalanche Association |
| CAADAA | Canadian And American Drawing Artists Association |
| CAAH | Canadian Association for Adolescent Health |
| CAAI | Canadian Association Against Impunity |
| CAAL | Canadian Association of Applied Linguistics |
| CAAM | Canadian Association of Aesthetic Medicine |
| CAAMA | Canadian Association for the Advancement of Music and the Arts |
| CAAN | Canadian Aboriginal AIDS Network |
| CAASP | Canadian Active After School Partnership |
| CAAT | Canadian Arctic Aviation Tour |
| CAATS | Canadian Automated Air Traffic System |
| CAAWS | Canadian Association for the Advancement of Women and Sport |
| CABB | Canadian Animal Blood Bank |
| CABC | Canadian American Business Council |