Devcon 9 (Devcon IX) takes place in Lisbon, Portugal, from 11 to 13 October 2027 at CCL – Lisbon Congress Centre. Organized by the Ethereum Foundation, Devcon brings developers, researchers and the wider Ethereum community together to explore open-source technology and exchange ideas.
The venue is at Praça das Indústrias, 1, 1300-307 Lisbon. Event dates follow the local Lisbon calendar; daily opening and closing times have not yet been announced.
The official Lisbon website currently offers a waitlist for updates. The detailed programme, speaker lineup and ticket prices are still to be announced.