Bile may refer to:

• Bile (or gall), a greenish-yellow alkaline fluid secreted from the liver of most vertebrates
• Bile (band), a New York industrial metal band
• Abdi Bile, a Somali former World champion middle distance runner
• Black bile or Yellow bile, two of the humours in the historical medical theory of humours (see Humourism)

Bile may also refer to:

• Belenus, a god of Celtic mythology
• Birecik, Turkey, a city called Bile during the Crusades
• William I of Bimbia (birthname Bile)
• Bile as a slang term can mean something hateful or demeaning, whereas "gall" is synonymous with audacity.

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