We use some essential cookies to make this website work.
We’d like to set additional cookies to understand how you use GOV.UK, remember your settings and improve government services.
We also use cookies set by other sites to help us deliver content from their services.
You have accepted additional cookies. You can change your cookie settings at any time.
You have rejected additional cookies. You can change your cookie settings at any time.
Departments, agencies and public bodies
News stories, speeches, letters and notices
Detailed guidance, regulations and rules
Reports, analysis and official statistics
Consultations and strategy
Data, Freedom of Information releases and corporate reports
The UK Hydrographic Office's participation at the 4th International Hydrographic Organization Assembly (IHO), held in Monaco.
The UKHO announces the appointment of Mark Barclay as its new Non-Executive Chair, bringing extensive defence and aerospace expertise to the role.
A four‑week seabed mapping survey will bring together scientists from 11 organisations to improve understanding of the marine environment.
Head of the Oman National Hydrographic Office recognised for his contributions to hydrography by being awarded the 2025 Alexander Dalrymple Award
The UKHO's Annual Report and Accounts for 2024 to 2025 is available to view and download
The UKHO recognises the impact seabed mapping has on enabling ocean action on World Hydrography Day and at the United Nations Ocean Conference in Nice in June.
The UKHO has appointed Vanessa Blake, who has been Interim Chief Executive since May 2024, as its Chief Executive on a permanent basis.
The Harbour Masters’ Guide to Hydrographic and Maritime Information Exchange is a joint publication from the UKHO and the UK Harbour Masters’ Association.
A new report reveals the significant economic and environmental benefit of seabed mapping within the UK Exclusive Economic Zone (EEZ).
The UKHO's Annual Report and Accounts for 2023 to 2024 is available to view and download
Raising awareness on the importance of hydrography in improving our knowledge and understanding of the world's seas and oceans.
Port Hydrographer at the Port of London Authority recognised for his contributions to hydrography
First published during the 2022 to 2024 Sunak Conservative government
Former Hydrographer of the Nigerian Navy recognised for services to international hydrography in latest edition of the annual honour.
Vanessa Blake, UK Hydrographic Office’s Chief Customer Officer, to succeed outgoing Chief Executive Peter Sparkes
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.
As a world-leading centre for hydrography, we support other nations with their hydrographic understanding and capabilities to support safety of life at sea.
The UK Hydrographic Office (UKHO) has taken an important step towards a more sustainable future
The UKHO's Annual Report and Accounts for 2022 to 2023 is available to view and download
The waters between Ireland and the UK were once covered by a huge ice sheet comparable in size to the glaciers found today in Antarctica
Retired Dutch Navy Captain recognised for services to international hydrography in latest edition of annual honours
Do not include personal or financial information like your National Insurance number or credit card details.
To help us improve GOV.UK, we’d like to know more about your visit today. Please fill in this survey (opens in a new tab and requires JavaScript).