| Acronym | Definition |
|---|
| CIRCL | Circle |
| CIRCL | Computer Incident Response Center Luxembourg (cyber-crime group) |
| CIRCL | Center for Injury Research and Control (University of Pittsburgh) |
| CIRCL | Centre for International Research in Childhood: Literature, Culture, Media (University of Reading; UK) |
| CIRCL | Chattanooga Indigenous Resource Center and Library (Chattanooga, TN) |
| CIRCL | Center for Improving Resources in Children (Temple University; Philadelphia, PA) |
| CIRCL | Coalition for Immigrants' Rights at the Community Level (Pennsylvania) |