The four articles in the symposium Radical Democracy and Representation are a selection of papers that were originally presented at an "Ontologies of Radical Democracy" workshop that was organized by the Department of Political Science, Faculty of Arts of the Charles University in Prague on 17th October 2014. The main task of the workshop was to develop our understanding of different radical democratic ontologies and the potential they open up for everyday radical democratic practices in terms of the possibility of a democratization of representation and agonism.