| CKA | California Kindergarten Association
| Others |
| CKA | Canadian Killifish Association
| Others |
| CKA | Canadian Kinesiology Alliance
| Others |
| CKA | Canterbury Kennel Assn
| Others |
| CKA | Canterbury Kennel Association
| Others |
| CKA | Carolina Kayak Anglers
| Others |
| CKA | Castellaw Kom Architects
| Others |
| CKA | Chin, Khumi Awa
| Others |
| CKA | Chinese Karate Association
| Others |
| CKA | Chris Kummerer Associates
| Others |
| CKA | Chronicle of the Kings of Alba
| Others |
| CKA | City Kids Adventures
| Others |
| CKA | Club Kombi Argentina
| Others |
| CKA | Coach Knowledge Assessment
| Others |
| CKA | Collegiate Kiteboarding Association
| Others |
| CKA | Colorado Karate Association
| Others |
| CKA | Commonly Known As
| Others |
| CKA | Competitive Keyword Analyzer
| Others |
| CKA | Consumer Knowledge Analysis
| Others |
| CKA | Council of Korean Americans
| Others |
| CKA | Crank Angle
| Others |