ICN Business School Institut des Comptes nationaux Instituut Collectie Nederland International Competition Network Incheon International Airport (IATA-luchthavencode: ICN) Intensive Care Neonatologie, zie NICU International Council of Nurses Intercity-Neigezug (ICN) van de Schweizerische Bundesbahnen (SBB) International Code of Nomenclature for algae, fungi, and plants, voorheen ICBN