BNF

BNF may stand for:

In science:

• Biological nitrogen fixation, a process that converts nitrogen in the atmosphere to ammonia
• British National Formulary, the standard drug reference manual
  • British National Formulary for Children
• British Nutrition Foundation
• Backus–Naur Form, in computer science, a formal grammar for expressing context-free grammars

In politics:

• Balawaristan National Front
• Belarusian (National) People's Front "Revival", better known as the BPF, a political party created in Belarus during the perestroika times (BNF is from the Latin translitteration of the Belarusian Беларускі Народны Фронт "Адраджэньне" (БНФ):Biełaruski Narodny Front "Adradžeńnie")
• Botswana National Front
• British National Front, a far-right political party in the United Kingdom
• Baloch National Front, a Baloch nationalist coalition in Pakistan

Other uses:

• British Nuclear Fuels (properly "BNFL")
• Big Name Fan, a member of a fandom who is particularly well-known
• Bibliothèque nationale de France (BnF), the French national library in Paris
• Beta normal form, a potential state for a term in Lambda calculus