Welcome to
Seattle Worldcon 2025!
Building Yesterday’s Future–For Everyone
August 13–17, 2025
Seattle Worldcon is done!
We’re done! Our virtual portal with our Discord server will go to read-only about a week after the con ended, our schedule is final, you can download your own copies of our souvenir program book and pocket program, and you can find anything else you’re looking for about the convention on the Worldcon At a Glance page! Thank you for coming to Seattle Worldcon 2025!
Our Guests of Honor
Our Poet Laureate
Our Hosts
The 83rd World Science Fiction Convention
Held in downtown Seattle, Washington, August 13–17, 2025. Bringing Worldcon back to Seattle for the first time since 1961!
Newsletter Sign-Up
Venue
The Seattle Convention Center’s new Summit expansion in the heart of downtown Seattle, surrounded by amazing views of the city, mountains, and water.
Program
Hundreds of hours of panel programming, presentations, workshops, events, table talks, autograph signings, kids programming, and more.
The Hugo Awards
Science fiction’s most prestigious award, administered and voted on by members of the World Science Fiction Convention—this means you!
Volunteer
A Worldcon is run entirely by unpaid, volunteer staff. You too can join this community of makers, doers, and shapers, for a few hours during the con, or throughout the planning process.
Recent Updates
It’s our last newsletter before con! Join the passport scavenger hunt; see our list of evening parties; meet our guests of honor; download our program book, pocket program, and restaurant guide; come to the art show reception; pay attention to your health; see our dance lineup; pre-con registration demographics; learn about the daily ’zine; badge replacement; limited participation event signups are open; Guidebook is up to date; The Head!!! That Wouldn’t Die!; and thanks for reading!
It has been a pleasure to bring you Yesterday, Today, & Tomorrow, the official blog of Seattle Worldcon 2025. Since the blog relaunched under this name on August 20, 2024, our all-volunteer staff of writers, editors, graphic artists, and web designers has brought you a steady stream of content, striving to enlighten minds, stimulate thoughts ... Read more
Our convention portal is open, with access to our Discord, virtual panels, panel and workshop signups, and more; our restaurant guide is posted; our programming just keeps expanding; ribbon collecting; calling for masquerade volunteers; childcare time adjustments; what you’ll find in our freebies lounge; and more!
Authors write what they know, and Frank Herbert was a voracious reader and lifelong learner, so naturally many of the things he explored found their way into his works. If one looks closely at the Duniverse, as seen in Frank Herbert’s Dune novels, there’s plenty of Washingtonian influences to be found in the Known Universe.
