| Acronym | Definition |
|---|
| CIRU➣Comprehensive Inpatient Rehabilitation Unit (Children's Healthcare of Atlanta; Georgia) |
| CIRU➣Confucius Institute at Rhodes University (est. 2008; South Africa) |
| CIRU➣Confucius Institute at Rutgers University (est. 2007; New Jersey) |
| CIRU➣Canadian Infantry Reinforcement Unit (Canadian military) |
| CIRU➣Cotton Insects Research Unit (USDA; Brownsville, TX) |