Listing Hackathons

Time to Accelerate Defense Innovation in Europe! Join us and 200+ hackers from across Europe and beyond for the European Defense Tech Hackathon, taking place on September 25–28, 2025, in London, UK—right before the Resilience Conference and as part of London Defence Tech Week. Connect with fellow defense innovators, meet potential co-founders, and build projects with real-world impact that could save lives. We’ll bring challenges rooted in pressing defense and security problems, and you’re welcome to bring your own ideas. Throughout the event, you’ll get hands-on guidance from seasoned mentors—and after the hackathon, we’ll help you take your project closer to real-world deployment 🚀

Time to Accelerate European Defense Innovation. Join us and 200+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on November 6 – 9, 2025, in Kyiv, Ukraine. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

Time to Accelerate European Defense Innovation. Join us and 200+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on May 1 – 3, 2026, in Kyiv, Ukraine. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

Time to Accelerate European Defense Innovation! Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon in Hamburg in mid-October 2025! Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

Signal Intelligence. Combat First Aid. Maritime Dominance. Join us and 100+ hackers from across Europe and beyond for the European Defense Tech Hackathon on Aug 29-31, 2025, in Copenhagen, Denmark. Connect with fellow defense innovators, meet potential co-founders, and work on projects that have the potential to save lives! We'll prepare challenges based on real-world problems, and you can bring your own project. You'll get feedback from experienced mentors, and we'll put you in a position to deploy your project in the real world after the hackathon 🚀 More information on our event website: https://eurodefense.tech/hackathons/copenhagen-2025/

Time to Accelerate European Defense Innovation Join us and 200+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on November 13-16, 2025, in Berlin, Germany, right before the Berlin Security Conference. We're excited to co-host the hackathon with the Bundeswehr Cyber Innovation Hub—the change agent of the Bundeswehr (German Federal Armed Forces), connecting them with builders, startups, and innovative solutions. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem.

Time to Accelerate European Defense Innovation 🚀 Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on February 27-March 1, 2025, in Athens, Greece. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

Time to Accelerate European Defense Innovation 🚀 Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on April 10-12, 2026, in Netherlands. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

Time to Accelerate European Defense Innovation Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on February 20-22, 2026, in London, UK. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

Time to Accelerate European Defense Innovation 🚀 Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on March 13-15 2026, in Brussels, Belgium. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems.

Time to Accelerate European Defense Innovation 🚀 Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on October 16-18 2026, in Bratislava, Slovakia - the first defence-focused hackathon of its kind in the country. Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem.

Time to Accelerate European Defense Innovation ​The mission continues: at the same time as the Munich Security Conference, we'll be organizing once again Europe's largest defense tech hackathon: ​​Join us and 200+ hackers from all across Europe and beyond for the third edition of the European Defense Tech Hackathon on February 13-16, 2025, in Munich.   Goal We want to bridge the gaps between technologists, the public sector, investors, and operators in dual-use and defense technology. This hackathon will demonstrate the talent and drive of the European ecosystem. ​​​Get inspired by the challenges we have prepared, or feel free to bring your own project. You'll get feedback from folks who have been on the frontline to ensure you're solving real problems. ​​Our goal with the hackathon is to put you in a position to continue towards deployment.

Build Europe's Tech Sovereignty Join 200 engineers, designers, and researchers in Gdańsk to prototype solutions that strengthen Europe's technological independence and critical infrastructure.

¡Únete al hackatón Ethereum Bolivia 2025! 🚀🌐 Desarrolladores, emprendedores y entusiastas del blockchain se reunirán para innovar y colaborar en proyectos revolucionarios. ¡No te pierdas esta oportunidad única de aprender y competir por grandes premios!

🕒 Challenge submission deadline is October 11th 🚀 Develop groundbreaking AI audio solutions using ElevenLabs technology. 💰 $6,666 prize pool for the winners. 📅 Finalists present at the ML in PL conference in Warsaw on November 7th 🎁 Get a promo code worth $15 of AI/ML API credits

👅 Generate realistic, captivating speech in a wide range of languages 🗓️ Join an exciting 3-day online hackathon from July 28 - 31 💡 Get full mentors support at lablab.ai platform 👥 Form Solo or Build Your Team 🐱‍💻 Registration ends on July 28th morning, so don't miss out! Sign up Now!

⌚ Take on a 48-hour challenge packed with creativity. 🚀 Build an app powered by Llama 3.2’s capabilities. 🎓 Get advice and support from industry experts along every step of the way. 🏆 Win an opportunity to participate in the Lablab NEXT acceleration program 💰 Stand a chance to win $5,000 in prizes. 🌟 Win the opportunity to be invited, with transport and accommodation covered, to our upcoming Giga Hackathons in Barcelona or Geneva in partnership with UNICEF. 🧑🏻‍💻 Sign up before the Kick-Off Stream to lock in your spot!

Join us for the next edition of ETHWarsaw - where builders meet to create the future of Ethereum.

ETHSamba Hack, Rio de Janeiro, 22/03 - 24/03

Munich’s Biggest Ethereum Hackathon Empowering innovation, collaboration, and blockchain solutions at the forefront of technical excellence EVM and EVM-compatible apps. https://ethmunich.de/

Welcome to our 2nd Edition of ETHDam, strap in for a 3 day IRL hackathon, dedicated to Privacy and Security, hosted in Amsterdam, the Netherlands.

ETHAccra is an in person 3-day hackathon happening in Accra. “Come for the Hack - Stay for the Vibes”

ETH Latam Hackathon Brasil, Sao Paulo, 06-07/November

ETH Cinco de Mayo Hackathon 2nd Edition

First ever Ethereum hackathon in Central Asia

The second edition of the ETH Belgrade hackathon takes place in Belgrade from May 31st to June 2nd, 2024.

Time to Accelerate European Defense Innovation 🚀 Join us and 100+ hackers from all across Europe and beyond for the European Defense Tech Hackathon on March 6-8, 2026, in Rzeszów, Poland. We’re excited to co-organize this hackathon with the Polish Development Fund (PFR) and Rzeszów City to support the creation of innovative technology in Poland, under the patronage of the Minister of National Defence of Poland. PFR offers instruments to support the development of enterprises, local government units, and private individuals, thereby investing in the country's sustainable social development and economic growth. One of PFR's projects is the IDA program, which supports innovative entities in developing dual-use technologies. Goal

Defense Hack Day is an intense one-day event where builders, engineers, and problem-solvers take on real-world security and defense challenges—from counter-drone systems to demining technologies. Think of it as a mini-hackathon: a focused briefing in the morning, a full day of hacking, and a high-energy pitch competition to close it out.

🚀 Revolutionize Government Efficiency with xAI & Grok: Embrace the Future of Public Service. ⚡ Build intelligent tools to streamline government processes, cut costs, and drive impactful change. 🤖 Harness the power of Grok, xAI’s advanced AI model, to automate tasks and empower citizens. 🌐 Collaborate with innovative developers and create solutions that reshape public administration. 📅 Register now and be part of the movement for a leaner, smarter government!

Join the world’s first Custom GPTs Hackathon to create your own AI tools! Innovate with GPTs: Explore the possibilities of creating custom versions of ChatGPT for specific tasks or purposes. No Coding Required: Anyone can build their own GPT; coding skills are not necessary. Hands-on Experience: The primary benefit of this Hackathon is the opportunity to gain practical, hands-on experience with OpenAI's GPT technology. Educational Focus: Use this event as an educational journey to understand the capabilities and applications of GPTs.