The biggest sci-fi & fantasy conventions

1. 1Oct29Les UtopialesOct 29 – Nov 1, 2026 · Nantes, France153,000 attendees · 2024 figure
2. 2May15Fantasy BaselMay 15–17, 2027 · Basel, Switzerland103,000 attendees · 2026 figure
3. 3Apr23Awesome ConApr 23–25, 2027 · Washington, United States60,000 attendees · 2024 figure
4. 4Aug5CastlefestAug 5–8, 2027 · Lisse, Netherlands55,000 attendees · 2026 figure
5. 5May27Les ImaginalesMay 27–30, 2027 · Épinal, France40,000 attendees · 2025 figure
6. 6Feb13Comiccon de QuébecFeb 13–14, 2027 · Québec, Canada22,000 attendees · 2024 figure
7. 7Oct10BuchmesseConOct 10, 2026 · Dreieich, Germany1,000 attendees · 2025 figure
8. 8Mar25MiniconMar 25–28, 2027 · Bloomington, United States616 attendees · 2026 figure

Ranked by the most recent attendance figure each event publishes (or its Wikipedia infobox), with the year it counts; figures from before 2018 aren't ranked. Events that don't publish one aren't on this list.

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