According to the latest United Nations projections, over 68% of the world’s population is expected to live in cities by 2050. Cities present a landscape of opportunities, challenges, and inequities, within which urban commons play critical roles in providing social and natural infrastructure that sustain lives and livelihoods. Urban commons refer to resources within cities that are formally or informally managed by diverse communities for shared use and benefit. These resources can be physical spaces, services, and digital platforms accessible to community members. Urban commons are a significant source of social and ecological development but also have the potential to exacerbate social exclusion.  We invite submissions that explore various aspects of urban commons. Topics of interest include, but are not limited to, the history of urban commons, global and regional perspectives on urban commons, Ostromian, critical, and legal perspectives, urban commoning practices, and case studies of urban commons initiatives such as collective urban housing, community gardens, urban forests, pedestrian zones, public and street art installations, mass transit systems, and bike-sharing programs. Program Committee sub-theme members: Hita Unnikrishnan, Albert Mumma