O'Reilly Open Source Convention

O'Reilly Open Source Convention
OSCON flag
OSCON flag
StatusInactive
GenreOpen Source (mainly software)
Location(s)Portland, Oregon (exceptions)
CountryUnited States
Inaugurated1999; 25 years ago (1999)
Most recent2019; 5 years ago (2019)
Organized byO'Reilly Media
Websitewww.oscon.com
Robin Hanson at OSCON 2007
Overview of OSCON 2009
Michal Migurski, Tim O'Reilly, and Jared Smith at OSCON 2013

The O'Reilly Open Source Convention (OSCON) was an American annual convention for the discussion of free and open-source software. It was organized by publisher O'Reilly Media and was held each summer, mostly in Portland, Oregon, from 1999 to 2019.