| Acronym | Definition |
|---|
| CLL | Center for Learning and Leadership (various organizations) |
| CLL | Chronic Lymphocytic Leukemia |
| CLL | Circular Linked List (data structure) |
| CLL | Commercial Lending and Leasing |
| CLL | Corners of Last Layer (Rubik's Cube algorithm) |
| CLL | Communication Language and Literacy |
| CLL | Contract Limit Line |
| CLL | Commission on Liquor Licensing (UK) |
| CLL | College Station, TX, USA (Airport Code) |
| CLL | College of Lifelong Learning |
| CLL | Celestial Labs Ltd. (India) |
| CLL | Conveyor Logistics Limited (Bangladesh) |
| CLL | Condominium Legal Liability (insurance) |
| CLL | Chief of Legislative Liaison |
| CLL | Cornell Law Library |
| CLL | Corporate Lessons Learned (USACE) |
| CLL | Chronic Lymphatic Leukemia Foundation |
| CLL | Club du Livre Libertaire (French: Libertarian Book Club) |
| CLL | Capacitively-Loaded Loop |
| CLL | Child Life-Line (est. 1994) |
| CLL | Culture et Loisirs de Leuville (French: Leuville Culture and Recreation; Leuville-sur-Orge, France) |