| Acronym | Definition |
|---|
| CIRA | Cooperative Institute for Research in the Atmosphere |
| CIRA | Contrôle Industriel et Régulation Automatique (French: Industrial Control and Automatic Control) |
| CIRA | Computational Intelligence in Robotics and Automation (IEEE workshop) |
| CIRA | Center for Interdisciplinary Research on AIDS (Yale University School of Public Health) |
| CIRA | Centro Italiano Ricerche Aerospaziali |
| CIRA | Continuity Irish Republican Army |
| CIRA | Centre International de Recherches sur l'Anarchisme (Lausanne, Switzerland) |
| CIRA | Certified Insolvency and Restructuring Advisor (Association of Insolvency & Restructuring Advisors; Medford, OR) |
| CIRA | Central Illinois Regional Airport |
| CIRA | Centres Interministériels de Renseignements Administratifs (French: Interdepartmental Centers of Administrative Information) |
| CIRA | COSPAR International Reference Atmosphere |
| CIRA | Center for Iranian Research and Analysis |
| CIRA | Comprehensive Immigration Reform Act of 2006 (US) |
| CIRA | Council of Independent Restaurants of America |
| CIRA | Common Interest Realty Association |
| CIRA | Center for Institutional Development (Macedonia) |
| CIRA | Certificado de Inexistencia de Restos Arqueológicos (Spanish: Certificate of Absence of Archaeological Remains; cultural heritage protection; Peru) |
| CIRA | Center for Intelligence Research and Analysis (Washington, DC) |
| CIRA | Centre International de Rencontres Artistiques (French dance school) |
| CIRA | Central Intelligence Retiree Association |
| CIRA | Centre d'Information et de Renseignements Administratifs (French administrative information center) |
| CIRA | Calcul Intensif en Rhône Alpes (French: Intensive Computing in the Rhone Alps; Rhone Alps, France) |
| CIRA | Customer Identification and Risk Assessment |
| CIRA | Cairo Investment and Real Estate Development (stock symbol) |
| CIRA | Canadian Internet Registration Authority (domain registry authority) |
| CIRA | Canadian Industrial Relations Association |
| CIRA | Center for Industrial Research Applications |