Australian Hydrographic Office

Contact Information

Postal Address:
Locked Bag 8801
Wollongong NSW 2500

Phone: +61 (0) 2 4223 6500

If you need to contact the AHO, please use the email addresses below:

Notices to Mariners - Reporting new or altered information, feedback on updates required to charts. Maritime Gazetteer of Australia, Maritime geographic and undersea feature names, maritime boundaries, charted wrecks, limits of oceans and seas, naval waters, navigational marks, nautical publications, information and hydrographic history, marine activities which require mariner awareness for safety of navigation: datacentre@hydro.gov.au
National & International Secretariat: aho.international.relations@defence.gov.au
Products - Wholesale Orders and Enquiries, Publicity and Promotion: hydro.sales@defence.gov.au
Survey and Chart data - Availability, Access and Licensing: hydro.licensing@defence.gov.au
Survey Ships & Units Survey Planning: hydro.plans@defence.gov.au
Technical Support - Electronic Charts: hydro.techsupport@defence.gov.au
Tides and Tide Tables, Datums and Datum shifts (horizontal and vertical) - Enquiries, Support and Feedback: tides.support@defence.gov.au
Website Issues: webmaster@hydro.gov.au
Nautical Publications: aho.communications@defence.gov.au
For S-100 matters: aho.s-100coordination@defence.gov.au
To contact Defence Media please email media@defence.gov.au