- international language for aviation, ILA
- International Mathematical Union , IMU
- International Maritime Organization, IMO
- International Civil Aviation Organization , ICAO
- International Space Station, ISS
- international debt crisis
- international affiliate
- International Telegraph and Telephone Consultative Committee , CCITT
- International Fund for Agricultural Development , IFAD
- IYHF : International Youth Hostel Federation
- International Charlemagne Prize of the city of Aachen
- International Air Transport Association, IATA
- International Covenant on Economic, Social and Cultural Rights , ICESCR
- International Marine Insurance Union , I.M.I.U. , IMIU
- International Socialist Militant League
- International Socialist Combat League
- International Stalin Prize for Strengthening Peace Among Peoples
- International Stalin Prize
- international star
- International Table Hockey Federation, ITHF
- international tourism
- International Council for Science , ICSU
- International Cloud Atlas
- International Monetary Fund, IMF
- internation agreement
- international shopping center
- international shopping centre
- international financial Jewry
- international trade law
- international celestial reference system , ICRS
- International Committee of the Red Cross , ICRC
- international committee
- international management , INT MGMT , IM
- International Nansen Office for Refugees
- International Olympic Committee , IOC
- international recycling symbol
- International Red Cross, IRC
- International Special Committee on Radio Interference
- international gateway
- internal data flow
