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The home of UK Hydrographic Office on GOV.UK. The UK Hydrographic Office (UKHO) is a world-leading centre for hydrography, specialising in marine geospatial data to support safe, secure and thriving oceans.
UKHO obtains ISO certification
An overview of the UKHO Archive, accessing our archive and ordering copies of archive material.
The UK Hydrographic Office (UKHO) is a world-leading centre for hydrography, specialising in marine geospatial data to support safe, secure and thriving oceans.
Our flexible service can provide tidal information tailored to your specific requirements.
Vanessa Blake, UK Hydrographic Office’s Chief Customer Officer, to succeed outgoing Chief Executive Peter Sparkes
As a Public Authority, the UKHO makes relevant data sets available in compliance with the ‘Infrastructure for Spatial Information in Europe’ (INSPIRE) initiative.
Careers in the UK Hydrographic Office
As a trading fund of the Ministry of Defence (MOD), we produce a global range of charts, publications and digital services for the Royal Navy and other defence customers.
Timetable for withdrawal of Standard Nautical Charts and Thematic Charts to be extended beyond 2026 in response to user feedback
The systematic survey of the UK’s coastal waters
We have a team of experts who specialise in technical aspects of maritime baselines, limits, zones and boundaries.
The UKHO's Annual Report and Accounts for 2022 to 2023 is available to view and download
This is a scanned version of a catalogue of charts and nautical publications produced by the Hydrographic Office available for purchase by the public in 1825
As a world-leading centre for hydrography, we support other nations with their hydrographic understanding and capabilities to support safety of life at sea.
How the UK Hydrographic Office is directed and managed.
Record copies of published Admiralty charts produced since 1800 arranged by chart number
The UK Centre for Seabed Mapping (UK CSM) programme team co-hosted an event with The Royal Society to explore the vital role of seabed mapping in ocean science.
Information about the UKHO and its activities of interest to Regional Hydrographic Commissions.
An assessment of the 2014 hydrographic survey.
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