Drawing on theoretical concepts from Foucauldian poststructuralism, the present master thesis asks to what extent the United Nations’ New Urban Agenda (NUA) does problematize sustainable cities, urbanization, and urbanism, and thereby questions how global urbanization is rendered governable and acted upon by global policymaking’s discursive practices. Applying Carol Becchi’s “What’s the Problem Represented to be?” (WPR) post-structural method in discursive policy analysis, the empirical analysis finds out that the problem representations contained within the NUA’s recommendations for transformative commitments towards global sustainability are in fact politically ambiguous and that due to its ‘régime of truth,’ the implementation of the NUA might result in the persistence of conditions of unsustainable urbanization, cities and urbanism.