| Acronym | Definition |
|---|
| CSIA | Chhatrapati Shivaji International Airport (India) |
| CSIA | Chimney Safety Institute of America |
| CSIA | Cyber Security Industry Alliance |
| CSIA | Cyber Security and Information Assurance (National Science and Technology Council) |
| CSIA | Centro Scolastico Industrie Artistiche (Italian: Industrial Arts Education Center) |
| CSIA | Compound Specific Isotope Analysis |
| CSIA | China Software Industry Association |
| CSIA | Colorado Software and Internet Association |
| CSIA | Customer Service Institute of Australia |
| CSIA | Control System Integrator Association |
| CSIA | Comité de Solidarité Avec Les Indiens des Amériques (French: Committee of Solidarity with the Indians of the Americas) |
| CSIA | Canadian Ski Instructor Alliance |
| CSIA | California Ski Industry Association |
| CSIA | Climate Stewardship and Innovation Act |
| CSIA | Centre for Studies in Aging (Canada) |
| CSIA | Clinton-Sherman Industrial Airpark (Burns Flat, Oklahoma) |
| CSIA | Chimney Service Institute of America |