IADB: Inter-American Development Bank
IAEA: International Atomic Energy Agency
IANA: Internet Assigned Numbers Authority
IBEC: International Bank for Economic Cooperation
IBRD: International Bank for Reconstruction and Development (World
Bank)
ICAO: International Civil Aviation Organization
ICC: International Chamber of Commerce or
Inuit Circumpolar Conference
ICCt: International Criminal Court
ICFTU: International Confederation of Free Trade Unions
ICJ: International Court of Justice (World Court)