OCTOBER 19–25, 2026

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SAVE THE DATES: October 19–25, 2026

About the Event

Convening Leaders for Ocean Innovation, Collaboration, & Action

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 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.

Get Involved

Host an event

We invite you to host an event during the week! Partner-led events – from panels and workshops, to technical demos, to film screenings, art installations, and more – are the heart of One Ocean Week. Whether you’re launching a new idea or aligning an existing project with the Ocean Action theme, hosting your event during the week connects you to a broader audience.

Add your event to the official calendar at the link below; learn more in our One Ocean Week Event Host Guide.

Submit your event to the OOWS Luma Calendar

Become a sponsor

Sponsorship gives you direct access to decision makers across industry, government, capital, and community and aligns your organization with leading global ocean solutions and the emerging blue economy.

One Ocean Week Seattle is your opportunity to lead. To participate. To contribute. To help build the future.

For more information, or to become a sponsor, please reach out to kathryn@maritimeblue.org.

Download the sponsorship prospectus

Visit our Resources Page to download logos and templates for outreach.