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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.

The Flash #​123 (July, 1961): The Flash of Two Worlds

January 17, 2025

Today superhero multiverses are everywhere, but back in 1961 we didn’t even have the concept. That is until one strange little tale changed everything: Flash #123, entitled The Flash of Two Worlds.

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

Around Seattle: Underground Tour

January 15, 2025

Explore the streets of old Seattle, buried underground after the Great Seattle Fire of 1889.

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

Newsletter January 2025: Seeking book donations!

January 14, 2025

The Freebies Lounge is looking for book donations, party suites may be requested, hotel room availability updates, announcing the Con-Verse blog column with Brandon O’Brien, membership rate increases, how to unsubscribe from the newsletter, writing contest submissions close soon, and Hugo, Lodestar, and Astounding award nominations open soon!

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

Con-Verse: Welcome

January 13, 2025

What better place to start this blog, then, by trying to ask and answer the one question that comes up often from people outside the space: what is a “speculative” poem?

More blog posts...