CIU
CIU may refer to: Crash Investigation Unit, an Australian factual television program Working Men's Club and Institute Union, an association of social clubs in the United Kingdom Chippewa County International Airport in Sault Ste. Marie, Michigan (IATA Code: CIU) Columbia International University, a Bible college and seminary in Columbia, South Carolina Cyprus International University, Cyprus, North Cyprus Cape plc, a construction company listed in the Alternative Investment Market under ticker CIU Customs and Immigration Union (Canada) Chronic idiopathic urticaria, also known as hives Collective investment undertaking, another term for an investment fund Conviction Integrity Unit, a division of a prosecutorial office, working to prevent, identify, and remedy false convictions Cédula de Identidad de Uruguay, the Uruguayan identity card Convergència i Unió, a Catalan political party