| CNR | C N ratio 
| Others |
| CNR | Caldari Navy Raven
| Others |
| CNR | Caldwell Night Rodeo
| Others |
| CNR | Campionatul National de Raliuri
| Others |
| CNR | Can Not Reproduce
| Others |
| CNR | Canadian National Railroad
| Others |
| CNR | Canadian National Railways
| Others |
| CNR | Cancel Not Reschedule
| Others |
| CNR | Capital Non Recurring
| Others |
| CNR | Carrier To Noise Ratio
| Others |
| CNR | Carrier-to-Noise Ratio
| Others |
| CNR | Carrier-to-Noise-Ratio
| Others |
| CNR | Casting Not Recommended
| Others |
| CNR | Catch and Release
| Others |
| CNR | Catch Neuter Release
| Others |
| CNR | Cell Nuclear Replacement
| Others |
| CNR | Center for Neuronal Regeneration
| Others |
| CNR | Center for Neuroscience Research
| Others |
| CNR | Center for Nursing and Rehabilitation
| Others |
| CNR | Center for Nursing Rehabilitation
| Others |
| CNR | Center for Nursing Research
| Others |
| CNR | Centre for Narrative Research
| Others |
| CNR | Centro Nacional de Registro
| Others |
| CNR | Centro Nacional de Registros
| Others |
| CNR | Centro Nazionale Delle Ricerche
| Others |
| CNR | Certainly No Rush
| Others |
| CNR | Change Notification Receiver
| Others |
| CNR | Channel Number
| Others |
| CNR | Charles Nelson Reilly
| Others |
| CNR | Chief of Naval Research
| Others |
| CNR | Child Nutrition Reauthorization
| Others |
| CNR | China National Radio
| Others |
| CNR | Cisco Network Registrar
| Others |
| CNR | City National Rochdale
| Others |
| CNR | click and run
| Others |
| CNR | Click N Run
| Others |
| CNR | Clinical Nutrition Research
| Others |
| CNR | Clutter to Noise Ratio
| Others |
| CNR | College of Natural Resources
| Others |
| CNR | College of New Rochelle
| Others |
| CNR | Colour Noise Reduction
| Others |
| CNR | Combat Net Radio
| Others |
| CNR | Combat Net Radio (SINCGARS) & Improved High Frequency Radio (IHFR)
| Others |
| CNR | Comision Nacional de Rallies
| Others |
| CNR | Committee For Nuclear Responsibility
| Others |
| CNR | Committee on Natural Resources
| Others |
| CNR | Communication and Networking Riser
| Others |
| CNR | Communication Network Riser
| Others |
| CNR | Communication Networking Riser
| Others |
| CNR | Communicationand Network Riser
| Others |
| CNR | Communications And Network Riser
| Others |
| CNR | Communications and Networking Raiser
| Others |
| CNR | Communications and Networking Riser
| Others |
| CNR | Communications Network Riser
| Others |
| CNR | Communications Networking Riser
| Others |
| CNR | Communications/Network Riser
| Others |
| CNR | Complex Node Representation
| Others |
| CNR | Composite Neck Reinforcement
| Others |
| CNR | Conan Novel Ring
| Others |
| CNR | Conditional Numerical Reproducibility
| Others |
| CNR | Conduit not required
| Others |
| CNR | Confederatia Nationala Rutiera
| Others |
| CNR | Conseil National de Recherches
| Others |
| CNR | Consiglio Nazionale Delle Ricerche
| Others |
| CNR | Content Navigation Rule
| Others |
| CNR | Contract Net Responder
| Others |
| CNR | Contrast to Noise Ratio
| Others |
| CNR | Contrast-to-Noise Ratio
| Others |
| CNR | Corner
| Others |
| CNR | Corpus Nummorum Romanorum
| Others |
| CNR | Could Not Reproduce
| Others |
| CNR | Could Not Resist
| Others |
| CNR | Council of National Representatives
| Others |
| CNR | Craftable Natural Resorces
| Others |
| CNR | Critical Needs Request
| Others |
| CNR | National Research Council
| Others |