October 20 - 26, 2025
Day(s)
:
Hour(s)
:
Minute(s)
:
Second(s)
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
In-kind Sponsors
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.
Host an Event
Join organizations across the region in hosting One Ocean Week Seattle.
One Ocean Week Seattle is a platform, not a single conference. We invite partners from across sectors—industry, government, education, philanthropy, and community—to host events that align with the week’s mission.
Whether it’s a panel, film screening, youth activity, reception, technical workshop, cultural performance, or delegation visit, we’ll help amplify your work and connect it to an international audience.
Hotel Room Blocks
Special One Ocean Week Seattle rates are available at our hotel partners below
Book by September 29
Book by September 19
Book by September 20
Steering Committee
