| Abbreviation | Definition |
|---|---|
| CITR | Canadian Institute for Telecommunications Research |
| CITT | Canadian Institute of Theatre Technology |
| CITT | Canadian Institute of Traffic and Transportation |
| CITT | Canadian International Trade Tribunal |
| CIUS | Canadian Internet Use Survey |
| CIVA | Canada India Village Aid (Vancouver, British Columbia, Canada) |
| CIVC | Canadian Imperial Venture Corp |
| CIWA | Canadian Injured Workers Alliance |
| CIWA | Cescanadian Injured Workers Alliance |
| CJAS | Canadian Journal of Administrative Sciences |
| CJAS | Canadian Journal of African Studies |
| CJAS | Canadian Journal of Animal Science |
| CJB | Canadian Jewellers Block |
| CJDS | Canadian Journal of Disability Studies |
| CJES | Canadian Journal of Earth Sciences |
| CJFE | Canadian Journalists for Free Expression |
| CJFL | Canadian Junior Football League |
| CJGA | Canadian Junior Golf Association |
| CJI | Community Justice Initiatives |
| CJM | Canadian Journal of Mathematics |