How should we conceive of the vulnerability which we all experience, and what import does it have for how we think of equality as a political ideal? How should the state express equal respect for its citizens in light of our common vulnerability, and the heightened vulnerability experienced by some citizens? What does it mean for us to treat each other as equals in light of the inevitable dependencies and vulnerabilities which colour our relationship with each other? This volume offers the first systematic exploration of the relationship between two increasingly central concepts in political and moral philosophy and theory, namely vulnerability and relational equality, with essays presenting a range of current philosophical perspectives on the pressing practical question of how to conceive of equality within society in light of vulnerability. It will be valuable for readers interested in political philosophy and theory, ethics, public policy and philosophy of law.