How many hackathons are there in London?

There are currently 1 hackathons listed in London, with 0 upcoming.

Are there online hackathons in London?

Yes! Of the 1 hackathons in London, 0 are online, 1 are in-person, and 0 are hybrid.

How do I find the best hackathons to join?

HackathonRadar tracks thousands of hackathons worldwide. You can filter by city, category, date, and prize pool to find events that match your interests and skill level.

🇬🇧Blockchain & Web3 Hackathons in London

Discover 1 blockchain & web3 hackathons in London. Hackathons exploring blockchain technology, smart contracts, DeFi, DAOs, and decentralized applications.

🇬🇧Blockchain & Web3 Hackathons in London

Tuesday, July 7, 2026

Arc Hackathon Launch

Past hackathons in London

Wednesday, July 1, 2026

Side Quest: ICL AI Hackathon Dinner @ Wolfys

Wednesday, June 3, 2026

Wayflyer x Fin Hackathon | Build the future of eCommerce

Tuesday, April 14, 2026

AI x Web3 Hackathon: Build a Working Prototype in One Afternoon

Saturday, April 11, 2026

Agentic Society: Panels by Day, Hackathon by Night

Thursday, March 5, 2026

HACKATHON - University of West London

Friday, February 27, 2026

Encode x Arc Enterprise & DeFi Hackathon

Friday, January 16, 2026

Hyperliquid London Community Hackathon

Hyperliquid London Hackathon

Friday, December 5, 2025

Agentic Hackathon with SpoonOS and Neo

Monday, December 1, 2025

Caffeine Promptathon

Saturday, November 29, 2025

UK AI Agent Hackathon Ep3 | AI + Blockchain Hackathon Powered by BNB Chain

Friday, November 14, 2025

Arc DeFi Hackathon

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Frequently Asked Questions

How many hackathons are there in London?

Are there online hackathons in London?

What are blockchain & web3 hackathons?

How do I find the best hackathons to join?