CDF
- CDF Croisières de France
- California Department of Forestry and Fire Protection
- Canal del Fútbol (Chile)
- Cardiff Central railway station
- Carlos Diego Ferreira
- Cation diffusion facilitator
- Ceylon Defence Force
- Channel Definition Format
- Chesapeake Detention Facility
- Chief of the Defence Force (disambiguation)
- Children's Defense Fund
- Chin State
- Chinland Defense Force
- Chip Description File
- Ciskei Defence Force
- Civil Defence Forces
- Clostridioides difficile (bacteria)
- Cohen–Daubechies–Feauveau wavelet
- Collider Detector at Fermilab
- Common Data Format
- Composite Document File
- Compound Document Format
- Computable Document Format
- Concurrent Design Facility
- Congolese franc
- Constituency Development Fund
- Constructive developmental framework
- Cooperative Development Foundation
- Cortina Airport
- Crypto Developers Forum
- Cumulative distribution function
- Dicastery for the Doctrine of the Faith