Bak

• Bak (surname), including a list of people with the name
• Bąk (surname), a Polish surname, including a list of people with the name
• Park (Korean surname), sometimes also Pak or Bak
• Bek (sculptor) or Bak, ancient Egyptian sculptor

• Bäk, Lauenburg, Schleswig-Holstein, Germany
• Bak District, Khost, Afghanistan
• Bäk, Khost Province, Afghanistan
• Bak, Hungary
• Bak, South Khorasan, Iran
• Bąk (disambiguation), including several places in Poland

• Bak file, a filename extension commonly used to signify a backup copy
• Bill and keep, reciprocal payment in telecommunications systems
• Benzalkonium chloride, a cationic surfactant

• Battersea Park railway station, London, England, station code BAK
• Columbus Municipal Airport (Indiana), U.S., FAA airport code BAK
• BAK, IATA airport code for Baku metropolitan area, Azerbaijan

• Bak (instrument), a Korean wooden clapper
• BAK (Austria), federal anti corruption agency
• BAK (magazine), online visual arts magazine
• Bashkir language, ISO 639 language code bak
• × Bakerara, abbreviation Bak., hybrid orchids
• BaK, World War I anti-balloon gun, from the German Ballonabwehrkanone
• Betrayal at Krondor, a video game
• Biking Across Kansas, an annual recreational and social rally
• Kocjan Bąk, a motor glider
• Lieutenant Bak, a character in novels by Lauren Haney

• Bąk (disambiguation)
• Bcl-2 homologous antagonist killer, encoded by the BAK1 gene

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