| ISIC | IEEE International Symposium on Intelligent Control 
| Others |
| ISIC | Immediate Senior In Command
| Others |
| ISIC | Immediate Superior In Command
| Others |
| ISIC | Information Specialist In Context
| Others |
| ISIC | Information Storage Industry Center
| Others |
| ISIC | Institute for Scientific Information on Coffee
| Others |
| ISIC | Intelligence and Security Informatics Conference
| Others |
| ISIC | Internal Security and Investigation Company
| Others |
| ISIC | International Skin Imaging Collaboration
| Others |
| ISIC | International Space Innovation Centre
| Others |
| ISIC | International Standard For Industry Classification
| Others |
| ISIC | International Standard Industrial Classification
| Others |
| ISIC | International Standard Industrial Classifications
| Others |
| ISIC | International Standard Industry Classification
| Others |
| ISIC | International Student Identification Card
| Others |
| ISIC | International Student Identification Cards
| Others |
| ISIC | International Student Identity Card
| Others |
| ISIC | International Student Identity Cards
| Others |
| ISIC | International Students Identity Card
| Others |