This entry examines urban renewal as a relevant and complex process in urbanism, encompassing different aspects of intervention in deprived neighborhoods. Urban renewal is defined by various perspectives, followed by an overview of urban renewal regarding its emergence, changes, and evolution, within the three historical generations proposed by Naomi Carmon. The entry also considers the relation between urban renewal and sustainability through four essential perspectives: physical, social, economic, and environmental. It finishes with a brief discussion of future research challenges in sustainable urban renewal studies.