| CTRF | Canadian Tobacco Research Foundation 
| Others |
| CTRF | Canadian Transport Research Forum
| Others |
| CTRF | Canadian Transportation Research Forum
| Others |
| CTRF | Canadian Turfgrass Research Foundation
| Others |
| CTRF | Cancer Treatment Related Fatigue
| Others |
| CTRF | Cancer Treatment Research Foundation
| Others |
| CTRF | Caregiver Teacher Report Form
| Others |
| CTRF | Celestial and Terrestrial Reference Frames
| Others |
| CTRF | Central Texas Renaissance Faire
| Others |
| CTRF | Christ The Rock Fellowship
| Others |
| CTRF | Christian Theological Research Fellowship
| Others |
| CTRF | Clinical Trial Request Form
| Others |
| CTRF | Clinical Trial Routing Form
| Others |
| CTRF | Commonwealth Technology Research Fund
| Others |
| CTRF | Connecticut Renaissance Faire
| Others |
| CTRF | Connector Test Results Form
| Others |
| CTRF | Contingent Term Repo Facility
| Others |
| CTRF | Conventional Terrestrial Reference Frame
| Others |
| CTRF | Gateway for Cancer Research (previously Cancer Treatment Research Foundation)
| Others |