Ambato Chachoan Airport (IATA code ATF), Ambato, Ecuador

ATF, the United States Navy hull classification symbol for a Fleet Ocean Tug

ATF, a rap song by DMX

Bureau of Alcohol, Tobacco, Firearms and Explosives, a law enforcement agency within the United States Department of Justice

ATF, the ISO 3166-1 three letter country code for the French Southern Territories in the Indian Ocean

After the Fire, 1970s and 80s rock band

Acquire the Fire, a Christian youth conference series run by Teen Mania Ministries.

Activating Transcription Factors, a family of DNA binding proteins which regulate gene transcription

American Type Founders, former dominant American manufacturer of metal type

Anatomical transfer function, also called the head-related transfer function, the mathematical description of sound wave propagation through the human body

Advanced Tactical Fighter program (competition between YF-22 and YF-23 fighter aircraft for U.S. Air Force contract)

Stealth ATF, a computer game

Artificial transcription factor, a type of engineered protein used in gene modulation

ATF Cleaner, a utility software program

A.T.F., a 1999 television film produced for the American Broadcasting Company

The Accelerator Test Facility, an experimental particle accelerator in KEK, Japan.

A.T.F. (video game), a 1988 computer game released by Digital Integration

Atlantic Theatre Festival, a professional theatre company located in Wolfville, Nova Scotia, Canada

Automatic transmission fluid, the liquid medium used in hydraulic automatic transmission systems