October 20 - 26, 2025
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About the Event
A Global Celebration of Ocean Innovation & Collaboration
One Ocean Week Seattle is a region-wide, international gathering of ocean leaders, innovators, researchers, startups, policymakers, artists, educators, and communities to accelerate solutions for a sustainable, inclusive maritime future.
Hosted by Washington Maritime Blue, the week features summits, cultural events, community activities, youth and workforce development programming, and global delegations – all with the aim of catalyzing the Blue Economy while leading on climate action, ecosystem health, and equity.
One Ocean Expedition
The One Ocean Expedition will visit Seattle October 22-27, 2025. As part of the UN Decade on Ocean Science and Sustainable Development, the historic tall ship Statsraad Lehmkuhl is circumnavigating the globe aimed at raising awareness and sharing knowledge about the crucial importance of the ocean for a sustainable future on a global scale.
Join Maritime Blue aboard the Norwegian tall ship, Statsraad Lehmkuhl for her voyage between Seattle and San Francisco from October 27 – November 3, 2025.
Thank you to our sponsors and partners
In-kind Sponsors
Presenting Partners
Media Partners
Become a Sponsor
Sponsorship of One Ocean Week Seattle places your organization at the center of global conversations on maritime innovation, ocean health, and economic transformation. It’s more than a logo—it’s a commitment to the future.
Steering Committee
