Hackathons in October 2026

Hack123 tracks 178 hackathons whose registration closes or event ends in October 2026; all have closed for now — use them as a guide to the next edition. Biggest prizes: Meta Global AI Developer Hackathon ($1M), Crypto World's Fair Hackathon 2026 ($840k). Breakdown: 55 in China, 123 international, 66 online-only, 54 for students, 37 beginner-friendly.

RelatedAI hackathons Online hackathons Student hackathons AIGC & Generative AI hackathons AI Agent hackathons Beginner-friendly hackathons Startup hackathons Web3 & Blockchain hackathons Education hackathons Healthcare hackathons

October 2026 at a glance

Deadlines by week: 1–7 17 · 8–14 27 · 15–21 52 · 22–31 82 · busiest day: Oct 31 (25)
Format & region: 78 in person · 34 hybrid · 66 online-only · 55 in China · 123 international
Host cities: San Francisco 11, Shanghai 8, Shenzhen 7, Beijing 6, Hangzhou 5, Hong Kong 5, Singapore 4, New York 3, Guangzhou 2, Taipei 2, +54
Top themes: AI 129, AI Agent 49, AIGC & Generative AI 32, Startup 27, Web3 & Blockchain 22, AI Coding 17
Biggest prizes: Meta Global AI Developer Hack… $1M, Crypto World's Fair Hackathon… $840k, RevenueCat Shipaton 2026 $740k, Monad Metropolis Global Hacka… $250k, TOKEN2049 Origins Hackathon 2… $150k
Who can join: 54 for students · 37 beginner-friendly · 120 with cash prizes listed
Still open this month: All deadlines this month have passed; use them as a preview of next year’s editions.

Months

February 2027 4 January 2027 13 December 2026 44 November 2026 249 September 2026 37 August 2026 25 July 2026 3 June 2026 3 May 2026 5 April 2026 3 March 2026 3 February 2026 5

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