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Welcome to
Seattle Worldcon 2025!

Building Yesterday’s Future–For Everyone

August 13–17, 2025

Our Guests of Honor

Martha Wells, a white woman with shoulder-length wavy dark blonde hair and waring a dark top, looks at the camera with a slight smile.

Martha Wells

Donato Giancola, a man with short-cut dark hair and goatee, wearing a grey t-shirt and jeans, sitting in the midst of an artist's studio, with finished and in-progress paintings and paint supplies around him.

Donato Giancola

Bridget Landry, a white woman with blonde medium-length hair, looking directly at the camera.

Bridget Landry

Alexander James Adams, a white man with long brown and grey hair in a ponytail, wearing a black sleeveless shirt and cowboy hat, plays a guitar and sings into a microphone.

Alexander James Adams

Our Poet Laureate

Brandon O'Brien, a black man with short hair and goatee, wearing glasses, with a slight sly grin on his face.

Brandon O’Brien

Our Hosts

K Tempest Bradford, a Black woman with curly black hair, wearing glasses, black lipstick, and a red and orange top, smiles at the camera.

K. Tempest Bradford

Nisi Shawl

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

The text Fantastic Fiction against a retrofuturistic design of a rounded triangle shape with a gold swirl pattern.

Czech SFT in F&SF, 1962

March 21, 2025

One might be surprised to learn that three (!) works of Czech speculative fiction in translation—all by Josef Nesvadba—were published in The Magazine of Fantasy and Science Fiction over the course of 1962.

The text Dispatches From Yesterday's Tomorrow against a retrofuturistic design of a rounded triangle shape with a blue swirl pattern.

Statement From Worldcon Chair

March 20, 2025

I am writing this statement in order to share the status of Seattle Worldcon’s current journey through living up to our theme of Building Yesterday’s Future—For Everyone. We have received a number of concerns asking how the convention will respond to orders and actions of the U.S. government, which we condemn, that create hostile conditions and travel barriers for LGBTQ+ members and international members.

The text Local Flavor against a retrofuturistic design of a rounded triangle shape with an orangey swirl pattern.

Local Flavor: Geoduck

March 19, 2025

The geoduck (pronounced “gooey duck”) is the world’s largest burrowing clam, and they’re one of our weird and wonderful native species—as well as the school mascot for The Evergreen State College.

The text Con-Verse against a retrofuturistic design of a rounded triangle shape with a pink swirl pattern.

Con-Verse: Speculative Poetry and The Body

March 17, 2025

Now that we have enough early-stage tools to discuss what makes poetry speculative, it’s a good time to consider something just a little bit more complex: what is the poem confronting that is valuable for us?

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