List of Members of the International Hydrographic Organization
(重定向自Hydrographic Service)
A hydrographic office is an organization which is devoted to acquiring and publishing hydrographic information.
The International Hydrographic Organization has 85 members, three of these are suspended. The IHO names its member organisations hydrographic offices although the member organisations of some countries are maritime administrations covering a larger range of tasks (e.g. also oceanography, meteorology etc.)