| Abbreviation | Definition |
|---|---|
| CIC | Canadian Immunization Committee |
| CIC | Committee on Institutional Cooperation |
| CICP | Committee to Investigate Copyright Problems |
| CIDC | Committee for International Development Cooperation |
| CIDD | Committee for International Discussion and Debate |
| CIDD | Committee on International Discussion and Debate |
| CIIC | Correctional Institutional Inspection Committee |
| CIJC | Construction Industry Joint Committee |
| CIO | Committee of Industrial Organizations |
| CIOC | Chief Information Officer Committee |
| CIOV | Commissione Istituti Ospitalieri Valdesi (Italian: Committee Institutes Hospitallers Valdesi) |
| CIPC | Critical Infrastructure Protection Committee |
| CIR | Committee for Investor Responsibility |
| CIR | Committee on International Relations |
| CIRC | Chalmers International Reception Committee |
| CISA | Committee on International Scientific Affairs |
| CISC | CRTC Interconnection Steering Committee |
| CISC | Curriculum and Instruction Steering Committee |
| CISR | Committee for Institutional Studies and Research |
| CISR | Committee on Institutional Studies and Research |