The International Hydrographic Organization (IHO) is an intergovernmental organization established in 1921 to support the safety of navigation and the protection of the marine environment.
It works to coordinate the activities of national hydrographic offices and sets global standards for hydrographic data, nautical cartography, and marine charting.
Its primary objective is to ensure that all the world's seas, oceans, and navigable waters are surveyed and charted correctly.
The headquarters of the IHO is located in Monaco.