| Acronym | Definition |
|---|
| CRU | Central Reexamination Unit (US Patent and Trademark Office) |
| CRU | Carriacou Island, Grenada (Airport Code) |
| CRU | Complete Remission, Unconfirmed (oncology) |
| CRU | Certified Residential Underwriter (Real Estate Institute of Canada accreditation) |
| CRU | Computer Resource Unit (WSU) |
| CRU | Calgary Rugby Union (Calgary, Alberta) |
| CRU | Communications Register Unit |
| CRU | Corporate Responsibility User (AT&T) |
| CRU | Chemically Resistant Urethane (floor coating used in aircraft hangars) |
| CRU | Case Resolution Unit |
| CRU | Center za Razvoj Univerze (Ljubljana, Slovenia) |
| CRU | Catalytic Research Unit |
| CRU | Combined Rotating Unit |
| CRU | Central Receivables Unit |
| CRU | Customer Resolution Unit |
| CRU | Customer Relation Unit |
| CRU | Connector to Regulator Unit (Item connecting to aviators oxygen regulator) |
| CRU | Concentration Receiving Unit |
| CRU | Canine Rescue Unit |
| CRU | Certified in the Use of RETScreen® (Association of Energy Engineers) |
| CRU | Crew Regulator Unit (aviators oxygen regulator) |
| CRU | Command and Response Unit |
| CRU | Conventional Resource Unit |
| CRU | Capacity-Related Unreliability |
| CRU | Conflict Resolution Unit |
| CRU | Cardiovascular Research Unit (various locations) |
| CRU | Commodity Research Unit (UK) |
| CRU | Crime Reduction Unit (Honolulu Police Department) |
| CRU | Customer Replaceable Unit |
| CRU | Commercial Retail Unit |
| CRU | Computer Resource Utilization |
| CRU | Climatic Research Unit |
| CRU | Crisis Response Unit (gaming group) |
| CRU | Comité Réseau des Universités (French: Network of Universities Committee) |
| CRU | Compensation Recovery Unit (UK) |
| CRU | Condensate Recovery Unit |
| CRU | Clinical Research Unit |
| CRU | Centre de Recherche d'Urbanisme (French: Center for Urban Research) |
| CRU | Crime Reporting Unit |
| CRU | Collision Reconstruction Unit (various locations) |
| CRU | Central Records Unit (various locations) |
| CRU | Climate Research Unit |