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 participate by hosting an event during the week! Partner-led events are at the heart of the event—bringing together diverse voices, showcasing real work, and driving meaningful conversations that extend beyond the event itself. Learn more from our One Ocean Week Seattle Event Host Guide.
Become a sponsor
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.
Calendar of events
See the full list of events, register as an attendee, or submit your own event directly on the One Ocean Week Seattle 2026 Luma calendar.
Thank you to our 2026 Sponsors
looking back at 2025
50+ Events
1,200+ Registrants
15 Countries Represented
2025 Sponsors
In-kind Sponsors
Presenting Partners
Media Partners
