Brains is predominantly the plural of brain.

Brains may also refer to:

• Brains, Loire-Atlantique, commune of the Loire-Atlantique département, in France
• Brains (Thunderbirds), scientist marionette character from the Thunderbirds television series
• "BRAINS!", song by the musician Voltaire, from the television show The Grim Adventures of Billy and Mandy
• Brains Brewery, brewery in Cardiff, Wales, sponsor of the Welsh rugby team
• The Brains, Atlanta band who did the original version of the song "Money Changes Everything"
• The brain of an animal, when described as offal

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