| CTRA | Canadian Therapeutic Recreation Association 
| Others |
| CTRA | Canadian Tire Roadside Assistance
| Others |
| CTRA | Capital Transaction Rupee Account
| Others |
| CTRA | Cedar Tree Residents Association
| Others |
| CTRA | Central Texas Recycling Association
| Others |
| CTRA | Central Texas Republican Assembly
| Others |
| CTRA | ChymoTRypsinogen A
| Others |
| CTRA | Clinical Trainee Research Award
| Others |
| CTRA | Clinical Trial Research Agreements
| Others |
| CTRA | Clinical Trials Research Administration courses
| Others |
| CTRA | Clinical Trials Research Alliance
| Others |
| CTRA | Clinical Trials Research Associate
| Others |
| CTRA | Coal Tar Research Association
| Others |
| CTRA | College Terrace Residents' Association
| Others |
| CTRA | Comox Town Residents Association
| Others |
| CTRA | Constant Turn Rate and Acceleration
| Others |
| CTRA | Cooperative Teamwork and Recycling Assistance
| Others |
| CTRA | Cooperative Teamwork Recycling Assistance
| Others |
| CTRA | Cowichan Therapeutic Riding Association
| Others |
| CTRA | Cross Traffic Rear Alert
| Others |
| CTRA | CT RaidAssist
| Others |