ADF may refer to:

Aviation Aerospace Data Facilities of the US National Reconnaissance Office Aircraft deicing fluid Dexter B. Florence Memorial Field (FAA code), an airport in the US Adıyaman Airport in Adiyaman Province, Turkey (IATA airport code ADF)

Organizations Aalto Design Factory, of Aalto University ADF Solutions, a US digital forensics company Alcohol and Drug Foundation, Australia Alliance Defending Freedom, a US conservative Christian organization Allied Democratic Forces, a Ugandan rebel group Ambazonia Defence Forces, a militant Cameroonian separatist group Antalya Diplomacy Forum, an annual conference held in Antalya, Turkey Arab Democracy Foundation, Qatar Arab Deterrent Force, serving in Lebanon Army Deployment Force, Singapore counter-terrorist unit Ár nDraíocht Féin, a Neopagan druid organization based in the US Australian Defence Force

Science and technology

Computing Amiga Disk File format Amsterdam Density Functional, electronic structure program Automatic document feeder, in printers and scanners Oracle Application Development Framework

Other uses inscience and technology ADF/Cofilin family, a family of actin-binding proteins African dwarf frogs, a group of aquatic amphibians belonging to the pipid frog genus Hymenochirus Alternate-day fasting, a variant of intermittent fasting Augmented Dickey–Fuller test, used in time series analysis

Transportation Anyang East railway station, China Railway telegraph code ADF Automatic direction finder, a navigation instrument

Other uses Alejandro Davidovich Fokina, a Spanish tennis player Alternative display facility, a type of financial exchange American Dance Festival, US Asian Dub Foundation, a British band Dhofari Arabic (ISO 639-3 code), Oman