The acronym CDF may mean any one of the following:
in Science, Mathematics and Computing:
- Collider Detector at Fermilab, an international collaboration of around 600 physicists studying high-energy particle collisions
- Cumulative distribution function (or just distribution function), a function in probability theory and statistics
- Common Data Format, a library and toolkit developed by the National Space Science Data Center (NSSDC) at NASA, as an interface for the storage and manipulation of multi-dimensional data sets
- Compound Document Format, a set of W3C standard describing electronic document file formats
- Computable Document Format, a file format designed to allow easy authoring of dynamically-generated interactive content
- Channel Defintion Format, an XML file format
- .CSV (comma-separated values or character-separated values), file format formerly referred to as comma delimited format
- .CDF, the ANDI/netCDF file format, used for chromatography and mass spectrometry data
- Cohen-Daubechies-Feauveau wavelet, a type of biorthogonal wavelet that may be used for image data compression
Organizations:
- Ceylon Defence Force, one of the predecessor organizations of the Sri Lanka Army
- Ciskei Defence Force, a military unit in South Africa during the Cold War
- Chief of the Defence Force, a position in multiple countries
- Congregation for the Doctrine of Faith, an organization responsible for promulgating and defending Catholic doctrine
- Cooperative Development Foundation, a charitable organization engaged in cooperative development in the US
- Constituency Development Fund, a Kenyan fund aiming to support constituency-level grass-roots development projects
- Children's Defense Fund, an American child advocacy and research organization
- California Department of Forestry and Fire Protection (also CAL FIRE), an agency responsible for fire protection and administration of forests in the State of California
- Canal del Fútbol, a privately-owned cable television channel in Chile
- Crypto Developers Forum, an organization that promotes the global interests of the UK crypto development industry
miscellaneous:
- Cardiff, the capital and largest city (and county) of Wales in the UK
- Cardiff Central railway station, with the National Rail Station code of CDF
- Cortina Airport, an airport in Cortina d'Ampezzo, Veneto in Italy, with the IATA code of CDF
- Chesapeake Detention Facility (formerly the Maryland Correctional Adjustment Center), a prison in Baltimore, Maryland in the US
- Concurrent Design Facility, the main assessment center for future space missions and industrial review of the European Space Agency
- CDF Croisières de France, a cruise line catering to the French cruise market
- Congolese franc, the currency of the Democratic Republic of Congo, with the ISO 4217 currency code of CDF
- Constructive Developmental Framework, a theoretical framework for psychological assessment based on empirical research
- Clostridium difficile, a species of bacteria that may be established in the human colon and cause colitis