| Acronym | Definition |
|---|
| CLR | Clear |
| CLR | Common Language Runtime (Microsoft .NET) |
| CLR | Color |
| CLR | Clearance |
| CLR | Clearing |
| CLR | Cleric (Everquest) |
| CLR | Combat Logistics Regiment (US Marine Corps) |
| CLR | Color Reference |
| CLR | Common Language Runtime |
| CLR | Counter Timer Lower Register |
| CLR | Coffee Leaf Rust |
| CLR | Closed Loop Recycling |
| CLR | California Literary Review (est. 2004) |
| CLR | Cell Loss Ratio |
| CLR | California Law Review |
| CLR | Commonwealth Law Reports (Australian's High Court law reporter) |
| CLR | Campaign for Labor Rights (Washington, DC) |
| CLR | Council on Library Resources |
| CLR | Centerline Radius |
| CLR | Calcium, Lime, Rust (cleaning solution) |
| CLR | Clear Request |
| CLR | Conditional Logistic Regression |
| CLR | Cormen, Leiserson, Rivest (authors of the book "Introduction to Algorithms") |
| CLR | Center of Lateral Resistance |
| CLR | Commercial Loan Review |
| CLR | Circle of Liberal Reformers (political party, Gabon) |
| CLR | Consortium for Lexical Research (New Mexico) |
| CLR | Computer Language Research |
| CLR | Current-Limiting Resistor |
| CLR | Canadian Legion of Riders (motorcycle club; Canada) |
| CLR | Circuit Layout Record |
| CLR | Centre de Lecture Rapide (French speed reading center; Canada) |
| CLR | Champagne Louis Roederer (French champagne company) |
| CLR | Central London Railway |
| CLR | Contact Lens Relief (Clear Eyes) |
| CLR | Container Loading |
| CLR | Clinical Laboratory Reference (journal) |
| CLR | Credit Loss Reserve |
| CLR | Chief of Staff Logistics Review |
| CLR | Capabilities List Request |
| CLR | Atlantic Razor Clam (FAO species code) |
| CLR | Center for Latino Research (DePaul University) |
| CLR | Contingent Liability Record |
| CLR | Combat Loss Replacement |
| CLR | Customer Liaison Representative |
| CLR | Context Likelihood of Relatedness (algorithm) |
| CLR | Contingent Liability Report |
| CLR | Correlated Low-Rank |
| CLR | Covert Laser Read |
| CLR | Cluster-Level Routing |
| CLR | Complex Linear Regression |
| CLR | Comb-Line Resonator |
| CLR | Carbon-Loaded Rubber (smart textile) |
| CLR | Collateral Level Reporting |
| CLR | Career-Limiting Remark |
| CLR | Combined Line & Recording |
| CLR | Casual, Looking & Ready (paid membership swingers' website and forum) |
| CLR | Capabilities and Limitations Report (ATEC) |