| Acronym | Definition |
|---|
| ICL | Indian Cricket League (Mumbai, India) |
| ICL | Implantable Contact Lens |
| ICL | Icon Library (file extension) |
| ICL | Implantable Collamer Lens |
| ICL | Imperial College London |
| ICL | International Computers Limited |
| ICL | International Communist League |
| ICL | Innovative Computing Laboratory |
| ICL | Institute for Civic Leadership (New York student development organisation) |
| ICL | Income Contingent Loan |
| ICL | International Conference on Luminescence and Optical Spectroscopy of Condensed Matter |
| ICL | Interface Clear |
| ICL | Index to Chiropractic Literature |
| ICL | Inorganic Chemistry Laboratory |
| ICl | Iodine Chloride |
| ICL | Inter-union Commission on the Lithosphere |
| ICL | In Christian Love |
| ICL | Inrush Current Limiter |
| ICL | Imperial College of Science, Technology and Medicine London |
| ICL | Inspection Checklist |
| ICL | Internet Chess Library |
| ICL | Inserted Connection Loss |
| ICL | Interface Control Layer |
| ICL | International Catering Limited (UK) |
| ICL | Image Composition Language |
| ICL | Input Command Language |
| ICL | Intermediate Cadet Leader (USAF ROTC) |
| ICL | In Chat Life |
| ICL | Instrument Command Language Interface |
| ICL | Individual Country Listing (US Postal Service) |
| ICL | Internal Countermeasure Launcher |
| ICL | Integrated Configuration List |
| ICL | Intra-Cluster Link |
| ICL | International Cooperative Logistics |
| ICL | Interface Control Ledge |
| ICL | Indice de Continuité Linguistique (French: Language Continuity Index) |
| ICL | Internet Christian Library (est. 1993) |
| ICL | Idea Cellular Ltd. (Aditya Birla Group; India) |
| ICL | Inductive Coupled-Line |
| ICL | International Coding League (student programming group) |
| ICL | Intuition Communication Ltd. (UK) |
| ICL | Insurance Contract Law |