Bab or BAB can refer to: *Bab (toponymy), a component of Arabic toponyms literally meaning "gate" * Set (mythology) (also known as Bab, Baba, or Seth) ancient Egyptian God * Bab (Shia Islam), a term designating deputies of the Imams in Shia Islam * Báb (Sayyid `Alí Muḥammad Shírází, 1819–1850), founder of Bábism and a central figure in the Bahá'í Faith * Bab-ı Âli, the gate to the palace of the Grand vizier of the Ottoman Empire * Báb, Nitra District, a village and municipality in the Nitra District in western central Slovakia * Bab Ballads, cartoons published by W. S. Gilbert under the childhood nickname, ''Bab'' * Back-arc basin, a geologic feature: a submarine basin associated with island arcs and subduction zones * "Base Attack Bonus", a term used in d20 System RPG games * Beale Air Force Base (IATA airport code: BAB), in California * ''Biotechnology and Applied Biochemistry'', an academic journal * Boris Berezovsky (businessman) (1946–2013), Boris Abramovich Berezovsky, a powerful Russian oligarch in self-imposed exile in London from 2001 * Build America Bonds, a type of municipal bond created by the ''American Recovery and Reinvestment Act of 2009'' * ''Bunty Aur Babli'', a 2005 Indian film * German autobahns or Bundesautobahn, federal motorways in Germany * B. A. Baracus, character on 1980s action series ''The A-Team'' * The British Aikido Board, a federation of independent Aikido associations within the United Kingdom *Babcock International (stock symbol BAB) *Balcombe railway station, a railway station in Sussex, England

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