| Acronym | Definition |
|---|
| ICCS | International Conference on Conceptual Structures |
| ICCS | International Conference on Computational Science |
| ICCS | International Council for Canadian Studies |
| ICCS | International Council for Canadian Studies (Conseil International d'Études Canadiennes) |
| ICCS | Institute of Communication and Computer Systems |
| ICCS | International Conference on Communication Systems |
| ICCS | International Conference on Cognitive Science |
| ICCS | Intercollegiate Center for Classical Studies (Rome, Italy) |
| ICCS | International Children's Continence Society |
| ICCS | International Commission of Control and Supervision (UN peacekeeping force in Vietnam) |
| ICCS | International Catholic Conference of Scouting |
| ICCS | Integrated Chassis Control System (Cadillac automotive technology) |
| ICCS | International Center for Cultural Studies |
| ICCS | International Centre for Chemical Sciences (Pakistan) |
| ICCS | Institute for Citizen Centered Service (Canada) |
| ICCS | International Classification of Clinical Services |
| ICCS | International Consumers for Civil Society (Washington, DC) |
| ICCS | Integrated Coastguard Communication System |
| ICCS | Integrated Catapult Control Station |
| ICCS | Interbuilding Communications Conduit System |
| ICCS | Senior Chief Interior Communications Electrician (Naval Rating) |
| ICCS | Integrated Contingency Communications System |
| ICCS | ITW/AA Configuration Control System |
| ICCS | Interim Command and Control System |
| ICCS | Incremental Hundred (C) Call Seconds |