This article contends that Hannah Arendt’s writing can add value to current discussions on responsible leadership. Specifically, considering responsibility through an Arendtian lens offers insights that deepen our understanding of the interconnections among leadership, responsibility, and ethical action. Turning to Arendt can, therefore, increase our grasp of the complexities of leading responsibly. She shows how acting responsibly requires not only ethical forethought but also a willingness to judge for ourselves. Her emphasis on judgment enriches discussions on responsible leadership, encouraging us to think more deeply about what it might mean to act responsibly, and how such action connects with ethics. Examples of irresponsible action are explored as they concern individual and collective judgment in particular political and corporate contexts. Thus, it is by engaging with the messy realities of everyday life that an Arendtian turn can help us rethink leadership, ethics, and responsibility in new and productive ways.