When disaster strikes, what is the just thing to do? When local or global crisis threatens the human rights of large parts of humanity, what is the just thing to do? Can we respond to injustices in the world in ways that do more than simply address their consequences? Just Responsibility provides a human rights theory of global justice that guides how we, each in political community together, can take responsibility for injustices wherever they are. Using empirical research into the ways that women’s human rights activists have done so under conditions of little political privilege, Just Responsibility offers a theory of global injustice and political responsibility that can guide the actions of those who are relatively privileged in relation to injustice, whether they are citizens, activists, academics, policymakers, or philanthropists. We can take responsibility for the power inequalities of injustice, what, following John Stuart Mill, the author calls “injustice itself,” regardless of our causal responsibility for the injustice and regardless of the extent of our knowledge of the injustice. Using a feminist critical methodology, Just Responsibility offers a grounded normative theory for taking political responsibility. The book integrates these ways of taking political responsibility into a rich theory of political community, accountability, and leadership in which taking responsibility for injustice itself contributes to and transforms the fabric of our political life together.