BIW

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BIW may refer to:

• Body in white (BiW), a stage in automotive design
• biw, ISO 639 language code for the Kol language (Cameroon)
• BIW, rail station code for Biggleswade railway station, Biggleswade, Bedfordshire, England, UK
• Bürger in Wut ("Citizens in Rage"), a German political party
• Business is War, a type of Business war games
• Bath Iron Works, a shipyard in Maine, US
• Beloit Iron Works (later Beloit Corporation), a former manufacturing company in Beloit, Wisconsin, US
• Brillion Iron Works, a former manufacturing company in Brillion, Wisconsin, US
• BIW Technologies, a former British software company, now part of Oracle