International Hydrographic Organization
Also known as IHO, International Hydrographic Bureau, IHB
intergovernmental organization
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The International Hydrographic Organization is an intergovernmental organization that brings together countries to coordinate maritime activities. It matters because it helps establish standards and share information that keep ocean navigation safe and reliable worldwide.
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Article
The International Hydrographic Organization (IHO) (French: Organisation Hydrographique Internationale) is an intergovernmental organization representing hydrography. As of August 2025, the IHO comprised 104 member states.
A principal aim of the IHO is to ensure that the world's seas, oceans and navigable waters are properly surveyed and charted. It does this through the setting of international standards and through its capacity building programs and offices.
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1921 establishments in MonacoHydrography organizationsIntergovernmental organizationsInternational geographic data and information organizationsInternational Hydrographic OrganizationInternational organisations based in MonacoInternational standardsOceanographic organizationsScientific organizations established in 1921United Nations General Assembly observers