| CIFF | Cairo International Film Festival 
| Others |
| CIFF | Calgary International Film Festival
| Others |
| CIFF | California Inland Fisheries Foundation
| Others |
| CIFF | Camden International Film Festival
| Others |
| CIFF | Camera Image File Format
| Others |
| CIFF | Canadian Insurance Financial Forum
| Others |
| CIFF | Canberra International Film Festival
| Others |
| CIFF | Cannes International Film Festival
| Others |
| CIFF | Capital Irish Film Festival
| Others |
| CIFF | Cardiff Independent Film Festival
| Others |
| CIFF | Caribbean International Film Festival
| Others |
| CIFF | Centrally Isolated Film Festival
| Others |
| CIFF | Chautauqua International Film Festival
| Others |
| CIFF | Chicago Independent Film Festival
| Others |
| CIFF | Chicago International Film Festival
| Others |
| CIFF | Children's Investment Fund Foundation
| Others |
| CIFF | China International Furniture Fair
| Others |
| CIFF | Cleveland International Film Festival
| Others |
| CIFF | Common Import Format File
| Others |
| CIFF | Comprehensive International Freight Forwarders
| Others |
| CIFF | Congo International Film Festival
| Others |
| CIFF | Copenhagen International Fashion Fair
| Others |
| CIFF | Cork International Film Festival
| Others |
| CIFF | Credit Insurance Factoring Finance
| Others |