ICGS
| Acronym | Definition |
|---|---|
| ICGS | Integrated Coast Guard Systems (Lockheed Martin/Ingalls joint venture) |
| ICGS | International Center for Graduate Studies (University of Hamburg; Germany) |
| ICGS | Intelligent Computer Graphics System (Verizon) |
| ICGS | Irish Chemists Golf Society |
| ICGS | International Centre for Geopolitical Studies (Switzerland) |
| ICGS | International Classification of Goods and Services (World Intellectual Property Organization) |
| ICGS | International Catholic Girls' Society |