CSIA

• Chhatrapati Shivaji International Airport, Mumbai, India

• Camborne Science and International Academy, Cornwall, England
• Cheongshim International Academy, Gyeonggi Province, South Korea

• Canadian Ski Instructors' Alliance
• Certified Securities Investment Advisor in South Korea
• China Software Industry Association
• Customer Service Institute of Australia

• Calgary Society of Independent Filmmakers (CSIF)
• CISA (disambiguation)
• CSAI (disambiguation)

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