NAF or Naf may refer to: Organizations NAF, a U.S. education non-profit organization formerly known as National Academy Foundation National Abortion Federation, a U.S. organization of abortion providers National Academies Forum, the peak body for the four learned academies in Australia Netherland-America Foundation, an organization which supports exchange between the United States and The Netherlands New America Foundation a Washington, DC-based think tank Norwegian Automobile Federation, an association of car owners Norwegian Employers' Confederation Norwegian Union of General Workers National Arbitration Forum, a U.S. arbitration and mediation firm Nordisk Andels Forbund ("Nordic Coöp Federation"), the predecessor to Coop Norden Defense Nigerian Air Force NATO Architecture Framework, an architecture framework used by NATO Naval Air Facility, a lower-level naval air station in the United States Navy Naval Aircraft Factory, operated in Philadelphia from 1918 to 1945 Numbered Air Force in the United States Air Force United Armed Forces of Novorossiya, Eastern Ukrainian pro-Russian separatists fighting the Ukrainian government for independence Science and mathematics Negation as failure, logic in which a statement that cannot be shown to be true is considered false rather than unknown Non-adjacent form, a signed-digit representation of numbers in mathematics and cryptography Sodium fluoride, a chemical compound whose formula is NaF Neutrophil-activating factor Other uses National Academy Foundation School, a public high school located in Baltimore, Maryland Native American flute, an end-blown flute from North America North Anatolian Fault, Turkey Naf River, a river between Bangladesh and Myanmar Nice As Fuck, an American indie rock band Nuffle Amorical Football, fictional governing body for the fantasy football game, Blood Bowl Netherlands Antillean guilder, often shortened to NAf