| Abbreviation | Definition |
|---|---|
| ICLP | Iranian Canadian Legal Professionals |
| ICLS | Indonesia Christian Legal Society |
| ICLS | Inland Counties Legal Services |
| ICLS | International Center for Legal Studies |
| ICOC | Internationally Criminally Organized Community |
| ICOFT | Illegal Capturing Of Free Tolls |
| ICOJ | International Court of Justice |
| ICOM | Investigation Collaboration Orchestration and Motivation |
| ICOS | The Integrated Court Operations System |
| ICP | Inner City Posse |
| ICPC | Interstate Compact on the Placement of Children |
| ICPO | International Criminal Police Organization |
| ICPR | Institute for Criminal |
| ICPR | Institute for Criminal Policy Research |
| ICR | Income Contingent Repayment |
| ICRO | Investigation and Consumer Reporting Office |
| ICS | Incident Command System |
| ICS | International Crime Syndicate |
| ICSL | Inns of Court School of Law |
| ICT | Immigration and Customs Enforcement |