Weekend Hackathons
Explore 540 weekend hackathons. Short-format events — three days or less, running across a Saturday or Sunday — so you can build, demo, and be back at work on Monday without booking time off.
Hackathons
494
Avg Prize
$46K
Organizers
72
Monday, October 12, 2026
Ongoing
InfiniSynapse Vibe Coding Hackathon 2026
Online
Oct 11 – Oct 12, 2026InfinisynapseOnline
Data Science
Artificial Intelligence
Ongoing
Safe Mobility Hack
In Person
Oct 10 – Oct 12, 2026Lazio InnovaRome, Italy$11K
Hackathon
Ongoing
Hacking Industry Camp
In Person
Oct 11 – Oct 13, 2026Alsace DigitaleStrasbourg, France
Hackathon
Ongoing
Apache Tomcat – Hackathon at Community over Code Glasgow 2026
In Person
Oct 11 – Oct 14, 2026Apache Software FoundationGlasgow, United Kingdom
Hackathon
Thursday, October 15, 2026
Upcoming
EUDIS Defence Hackathon 2026
Hybrid
Oct 15 – Oct 17, 2026European CommissionSoave, Italy
Hackathon
Upcoming
SheBuilds on Lovable - Season 04
Online
Oct 15 – Oct 17, 2026LovableOnline
Hackathon
Upcoming
Qdrant Vector Quest: AI-Powered Game Development Hackathon
In Person
Oct 15 – Oct 17, 2026Jennifer RossSeattle, United States$2K
Artificial Intelligence
Game Development
Data Science
Friday, October 16, 2026
Upcoming
Neural Wave
In Person
Oct 16 – Oct 18, 2026Neural Wave (Organizing Committee)Lugano, Switzerland
Hackathon
Upcoming
CIVIL GAME JAM 2026
In Person
Oct 16 – Oct 18, 2026KTMMOB İnşaat Mühendisleri OdasıKuzey Kıbrıs, Cyprus$150K
Game Jam
Game Development
Upcoming
Black Forest Hackathon: Smart Automation
In Person
Oct 16 – Oct 18, 2026Black Forest HackathonOffenburg, Germany$6K
Hackathon
Productivity
Upcoming
EU Agri-Hackathon
Hybrid
Oct 16 – Oct 18, 2026European CommissionBrussels, Belgium
Hackathon
Upcoming
Tax Tech Hackathon 2026
In Person
Oct 16 – Oct 18, 2026RSM Ebner Stolz, Live & Learn Events by Fachmedien Otto Schmidt, PSP MünchenFrankfurt, Germany
Hackathon
Upcoming
kood/Garage48 Empowering Women Hackathon
In Person
Oct 16 – Oct 18, 2026kood/Jõhvi and Garage48Jõhvi, Estonia
Hackathon
Diversity & Inclusion
Upcoming
Art & Play '26 - Pombal Game Jam
In Person
Oct 16 – Oct 18, 2026IGDA PortugalPombal, Portugal
Game Jam
Game Development
Upcoming
SotonShip 26
In Person
Oct 16 – Oct 18, 2026Southampton, United Kingdom
Student
Community
Networking
Upcoming
BCG Platinion Hackathon 2026: Fighting World Hunger
In Person
Oct 16 – Oct 17, 2026BCG PlatinionFrankfurt, Germany
Hackathon
Upcoming
Rakathon
In Person
Oct 16 – Oct 18, 2026FN Motol, Homolka, 2. LF UKPrague, Czechia$100K
Hackathon
Upcoming
DO-DATA-HACKATHON
In Person
Oct 16 – Oct 17, 2026TU Dortmund UniversityDortmund, Germany$3K
Hackathon
Data Science
Upcoming
RST: The Repair Awakens
In Person
Oct 16 – Oct 18, 2026Lehrstuhl Regelungssystemtechnik (RST) der TU DortmundDortmund, Germany
Hackathon
Upcoming
JunctionX Turku 2026 - Hack the Future!
In Person
Oct 16 – Oct 18, 2026JunctionX Turku ryTurku, Finland
Hackathon
Upcoming
Arcade Game Jam
In Person
Oct 16 – Oct 18, 2026TAGAPCluj-Napoca, Romania
Game Jam
Game Development
Upcoming
BoC Fintech Hackathon 7.0
In Person
Oct 16 – Oct 18, 2026Bank of CyprusNicosia, Cyprus$7K
Hackathon
Fintech
Upcoming
Women Game Jam Turkey 2026
In Person
Oct 16 – Oct 18, 2026Women Game JamIstanbul & Ankara, Turkey
Game Jam
Game Development
Diversity & Inclusion
Upcoming
GreenLab Sardinia Hackathon
In Person
Oct 16 – Oct 17, 2026Centro Servizi per le Imprese della Camera di Commercio di Cagliari-OristanoCagliari, Italy
Hackathon
Upcoming
Ocean Hackathon®: Data, an Event and an International Community
Hybrid
Oct 16 – Oct 18, 2026Campus mondial de la merBrest, France
Hackathon
Data Science
Upcoming
Ocean Hackathon 2026 Cork
In Person
Oct 16 – Oct 18, 2026Cork County Council, University College CorkCork, Ireland
Hackathon
Upcoming
Build-A-Thon
In Person
Oct 16 – Oct 17, 2026Major League HackingIbadan, Nigeria
Healthtech
Cybersecurity
Artificial Intelligence
Upcoming
Agentic Enterprise AI Hackathon — Box + AWS
In Person
Oct 16 – Oct 18, 2026boxSeattle, United States
Artificial Intelligence
Cloud
Data Science
Upcoming
Build-A-Thon
Online
Oct 16 – Oct 17, 2026Major League HackingOnline
Healthtech
Cybersecurity
Artificial Intelligence
Upcoming
TechWarriors Hackathon – Against Gender-Based Violence
In Person
Oct 16 – Oct 17, 2026Digital Innovation Hub VicenzaVicenza, Italy
Hackathon
Upcoming
Seattle GiveCamp 2026
In Person
Oct 16 – Oct 18, 2026Seattle GiveCampRedmond, United States
Social Impact
Artificial Intelligence
Mobile Development
Upcoming
Hackathon AI Iași 2026
Hybrid
Oct 16 – Oct 18, 2026Asociația Holistic Mark Club (Mark AI Integrator)Iași, Romania$8K
Hackathon
Artificial Intelligence
Upcoming
European Defense Tech Hackathon - Sofia
In Person
Oct 16 – Oct 18, 2026Philipp RitzingerSofia, Bulgaria
Social Impact
Data Science
Cybersecurity
Upcoming
Rakathon - National Cancer Hackathon
In Person
Oct 16 – Oct 18, 2026Czech National Institute for Cancer Research (NICR)Prague, Czechia$175K
Hackathon
Upcoming
Hinterland Hackvdvdvdv
In Person
Oct 16 – Oct 18, 2026Hinterland of ThingsBielefeld, Germany
Hackathon
Upcoming
Robot Hackathon: Code That Moves
In Person
Oct 16 – Oct 17, 2026Shannon BradshawNew York, United States
Artificial Intelligence
IoT
Upcoming
Neeley AI Forward: AI Innovation Competition
Online
Oct 16 – Oct 18, 2026Texas Christian UniversityOnline
Artificial Intelligence
Edtech
Social Impact
Upcoming
De Anza Hackathon 5.0
In Person
Oct 16 – Oct 18, 2026Melinda NguyenCupertino, United States
Edtech
Fintech
Upcoming
Chicago Frontier Hackathon — Build your Autonomous Code Factory
In Person
Oct 16 – Oct 17, 2026Jon BellChicago, United States
Artificial Intelligence
Upcoming
JunctionX Turku
In Person
Oct 16 – Oct 18, 2026Turku
Web Development
Mobile Development
Artificial Intelligence
Upcoming
GameJamPlus 2026/27 | Azərbaycan
In Person
Oct 16 – Oct 18, 2026IGDA AzerbaijanAzerbaijan
Game Development
Community
Innovation
Upcoming
Build Agents That Remember Hackathon @42Paris
In Person
Oct 16 – Oct 18, 2026Nassim Adam BariolParis, France$3K
Artificial Intelligence
Upcoming
ERH Physical AI Hackathon
In Person
Oct 16 – Oct 18, 2026coprod Inc.Schlieren, Switzerland
Artificial Intelligence
IoT
Upcoming
Reinvent the Wheel: A Tools for Science Hack
In Person
Oct 16 – Oct 18, 2026William BoltonLondon, United Kingdom
Artificial Intelligence
Open Source
Upcoming
Startup Weekend Iasi
In Person
Oct 16 – Oct 18, 2026Startup Weekend RomaniaIași, Romania
Hackathon
Entrepreneurship
Upcoming
Cornell Six Sigma Hackathon
In Person
Oct 16 – Oct 17, 2026Cornell UniversityIthaca, United States
Artificial Intelligence
Healthtech
Edtech
Upcoming
TechEx Amsterdam Hackathon - AI & Big Data Expo Europe
Hybrid
Oct 16 – Oct 19, 2026TBA
Artificial Intelligence
Data Science
Upcoming
Hack the Valley
In Person
Oct 16 – Oct 18, 2026Scarborough, Ontario, Canada
Hackathon
Upcoming
Code in the Dark: AI-Assisted
In Person
Oct 16 – Oct 17, 2026Toronto, Ontario, Canada
Hackathon
Artificial Intelligence
Upcoming
Self Accelerating AI for Drug Development
In Person
Oct 16 – Oct 17, 2026San Francisco, California, United States
Hackathon
Artificial Intelligence
Past hackathons
Recently ended — many run again.
Sunday, October 11, 2026
Past
AI Defense Lab 2026 | Register only through link⬇️
Online
Oct 11, 2026Seattle Data AI & SecurityOnline
Artificial Intelligence
Cybersecurity
Data Science
Past
Multi Model Hackathon - #SFTechWeek
Online
Oct 11 – Oct 12, 2026Sean ChiuOnline
Artificial Intelligence
Past
The Harness Engineering & Model Wrangling #SFTechWeek Hackathon
In Person
Oct 11 – Oct 12, 2026MongoDBSan Francisco, United States$18K
Artificial Intelligence
Cloud
Cybersecurity
Past
Tech Week Hackathon
In Person
Oct 11 – Oct 12, 2026Frontier TowerSan Francisco, United States
Web Development
Mobile Development
Artificial Intelligence
Past
AI Engineer New York Hackathon
In Person
Oct 11 – Oct 12, 2026Ryan SwiftNew York, United States
Artificial Intelligence
Social Impact
Mobile Development
Past
Hacktoberfest Hack Day Manchester x Open Source Society UoM
In Person
Oct 11, 2026Open Source Society UoMManchester, United Kingdom
Hackathon
Open Source
Past
HackWimbledon October 2026 #1
In Person
Oct 11, 2026Neil LambethLondon, United Kingdom
Artificial Intelligence
Fintech
Past
Stark Official Hackathon
In Person
Oct 11, 2026Kidus YohannesAddis Ababa, Ethiopia
Computer Vision
Artificial Intelligence
Blockchain
Past
Ai Builder Cup
Online
Oct 11, 2026H2SOnline
Artificial Intelligence
Cloud
Past
OpenAI Student Collective x Geek Room: Refine Your Hackathon Project with ChatGPT Work
In Person
Oct 11, 2026Jaspreet SinghNoida, India
Artificial Intelligence
Past
Grok Bot Tokyo Hackathon
In Person
Oct 11, 2026AsahiChiyoda City, Japan
Artificial Intelligence
Social Impact
Fintech
