CSIA

CSIA may refer to:

Airports

 * Chhatrapati Shivaji International Airport, Mumbai, India
 * Chengdu Shuangliu International Airport, Chengdu, Sichuan, China

Schools

 * Camborne Science and International Academy, Cornwall, England
 * Cheongshim International Academy, Gyeonggi Province, South Korea
 * Columbus Spanish Immersion Academy, Ohio, U.S.

Other

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