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Welcome to
Seattle Worldcon 2025!

Building Yesterday’s Future–For Everyone

August 13–17, 2025

Five people dressed in retrofuturistic clothing, of varied apparent races, genders, and ages. One is in a hover chair, and one is using a jetpack.

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!

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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. Now soliciting panelists!

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

Fantastic Fiction: Early Science Fiction Meets Proto-Steampunk: The Time Machine

In many ways, the Yesterday, Today & Tomorrow blog is a time machine, taking us back into the history of the genre and showing how that past is connected to the present and future. In 1960, a movie adaptation of H.G. Wells’ 1895 novel The Time Machine brought the story out of the past and into the present of that decade with aesthetics that looked both back to the Victorian era and forward to the turn of the millennium.

Announcement: Building the Business Meeting’s Future–For Everyone!

Have you ever wondered about or wanted to participate in how the rules that govern the Worldcon, the Hugo Awards, and other aspects of WSFS get made? We are excited to announce that this year we have developed a new process for the business meeting: a series of pre-convention, virtual meetings!

Around Seattle: Museum of Pop Culture

Step into a science fiction and fantasy hall of fame packed with memorabilia from legendary franchises.

Fantastic Fiction: Pathfinders (1960-1961): The Path to Doctor Who

In 1960 we were still three years away from Doctor Who’s premiere—however, producer Sydney Newman was already hard at work creating family-oriented science fiction television at the independent network Associated British Corporation (ABC Television). Between 1960–1961, U.K.’s ABC ran four serials, Target Luna, Pathfinders in Space, Pathfinders to Mars, and Pathfinders to Venus, and the U.K. was enchanted with journeys to Earth’s nearest neighbors.