| Acronym | Definition |
|---|
| ICU | Intensive Care Unit |
| ICU | International Components for Unicode |
| ICU | International Christian University (Tokyo, Japan) |
| ICU | Illinois Credit Union |
| ICU | I See You |
| ICU | Instruction Cache Unit |
| ICU | International Component for Unicode |
| ICU | Instrument Control Unit |
| ICU | Instruction Control Unit |
| ICU | Ibm Classes for Unicode |
| ICU | Inter Cache Unit |
| ICU | Interrupt Control Unit |
| ICU | Internet Communication Utility |
| ICU | Invalid Cmu User Id |
| ICU | Interactive Configuration Utility |
| ICU | Inner City Unit (band; UK) |
| ICU | Information and Communications University (Daejon, South Korea) |
| ICU | Imperial College Union (England) |
| ICU | ISA Configuration Utility |
| ICU | Island Climate Update (New Zealand) |
| ICU | Islamic Court Union |
| ICU | International Cycling Union |
| ICU | International Conference on Ultra-Wideband (IEEE) |
| ICU | Instruction Cache Unit (CPU) |
| ICU | Ibaraki Christian University (Japan) |
| ICU | Implementation Coordination Unit |
| ICU | Interface Control Unit |
| ICU | Intersection Capacity Utilization |
| ICU | Interactive Chart Utility (IBM) |
| ICU | Irish Chess Union |
| ICU | Ill Crew Universal |
| ICU | Industrial and Commercial Union (South Africa) |
| ICU | Image Control Unit |
| ICU | Interim Control Unit |
| ICU | International Chemistry Union (Los Angeles, CA) |
| ICU | International Communist Union |
| ICU | Information Coordination Unit |
| ICU | Injection Control Unit |
| ICU | Indiana Central University (now University of Indianapolis) |
| ICU | Instrumentation Control Unit |
| ICU | Interstation Control Unit |
| ICU | Indian Christians United |
| ICU | Interface Coordination Unit |