| Abbreviation | Definition |
|---|---|
| CNAA | Central Nassau Athletic Association |
| CNAA | Cottonmill and Nunnery Allotment Association |
| CNATS | Canadian Nurses Association Test Service |
| CNATS | Canadian Nurses Association Testing Services |
| CNCA | California Narcotic Canine Association |
| CNCA | California Nevada Cement Association |
| CNDA | California Naturopathic Doctors Association |
| CNDA | Canadian Naval Divers Association |
| CNGA | California Native Grasslands Association |
| CNGA | China National Garment Association |
| CNGA | Colorado Nursery and Greenhouse Association |
| CNGA | Colorado Nursery Greenhouse Association |
| CNHA | Calgary Northstars Hockey Association |
| CNIA | Cabbagetown Neighborhood Improvement Association |
| CNIA | Canada Newcomers Immigration Association |
| CNIA | Circle of Nations Indigenous Association |
| CNLA | Canadian Nursery Landscape Association |
| CNLA | Canadian Nursery Landscaping Association |
| CNLA | Clinical Nurse Leader Association |
| CNLA | CT Nursery and Landscape Association |