| CRN | Call Reference Number 
| Others |
| CRN | Can't Right Now
| Others |
| CRN | Canadian Registration Number
| Others |
| CRN | Cancer Research Network
| Others |
| CRN | Career Resource Network
| Others |
| CRN | Carolina and Northwestern Railway (Norfolk Southern)
| Others |
| CRN | Case Reference Number
| Others |
| CRN | Center for Responsible Nanotechnology
| Others |
| CRN | Center Roof Node
| Others |
| CRN | Certified Radiologic Nurse
| Others |
| CRN | Certified Radiology Nurse
| Others |
| CRN | Check Return Notification
| Others |
| CRN | Chemical Reactor Network
| Others |
| CRN | Children's Restoration Network
| Others |
| CRN | Christmas Rock Night
| Others |
| CRN | Civil Remedy Notice
| Others |
| CRN | Class Reference Number
| Others |
| CRN | Climate Reference Network
| Others |
| CRN | Clinical Research Network
| Others |
| CRN | Cloud Resource Names
| Others |
| CRN | Club Racing News
| Others |
| CRN | Club Reference Numbers
| Others |
| CRN | Club Renault Norvege
| Others |
| CRN | Clubman Rally Navigator
| Others |
| CRN | Collaborative Research Networks
| Others |
| CRN | Collateral Risk Network
| Others |
| CRN | Collision Repair Network
| Others |
| CRN | Command Reference Number
| Others |
| CRN | Commercial Relocation Network
| Others |
| CRN | Community Recycling Network
| Others |
| CRN | Community Resource Network
| Others |
| CRN | Compare with Random Number
| Others |
| CRN | Computer Registration Number
| Others |
| CRN | Computer Reseller
| Others |
| CRN | Computer Reseller News
| Others |
| CRN | Computing Research News
| Others |
| CRN | Congested Road Notification
| Others |
| CRN | Congress Rental Network
| Others |
| CRN | Context Recognition Network
| Others |
| CRN | Contract Revision Number
| Others |
| CRN | Convention and Resort Network
| Others |
| CRN | Cooperative Research Network
| Others |
| CRN | Coordinated Registry Network
| Others |
| CRN | Cosmogenic Radionuclide
| Others |
| CRN | Council for Responsible Nutrition
| Others |
| CRN | Council on Renal Nutrition
| Others |
| CRN | Council on Renal Nutrition's
| Others |
| CRN | Course Reference Number
| Others |
| CRN | Course Registration Number
| Others |
| CRN | Course Request Number
| Others |
| CRN | Court Reporting Network
| Others |
| CRN | Cromarty, Scotland
| Others |
| CRN | Crying Right Now
| Others |
| CRN | Current Return Network
| Others |
| CRN | Customer Reference Number
| Others |
| CRN | Customer Relationship Number
| Others |
| CRN | Toyota Carina
| Others |