ADF

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

• 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
• Australian Defence Force

• 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

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

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

• 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

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