CAIR

• Carboxyaminoimidazole ribotide, a biochemical intermediate nucleotide
• Centre for Artificial Intelligence and Robotics, Indian national defence laboratory
• Clean Air Interstate Rule, US environmental regulation
• Council on American–Islamic Relations, American Muslim advocacy organization

• Cair, an alternate spelling of caer, a Welsh placename element referring to strongholds
• Čair Municipality, municipality of Skopje, Republic of North Macedonia

• Cair Andros, a fictional island in Tolkien's fiction
• Cair Paravel, a castle from C. S. Lewis' The Chronicles of Narnia

{{disambiguation}}