Social Justice in the 21st Century explores how societal challenges impact equity and fairness on a local and global scale. It addresses a breadth of concerns from distributive justice and feminist principles to peacebuilding efforts, thoroughly examining how inequality manifests across various societal constructs including race, gender, ethnicity, and economic class. The book presents discussions on the intersection of social sciences and social justice, including topics like the evolution of peace studies post-World War II, a detailed analysis of various human rights issues, and debates on medical ethics and legal conundrums surrounding contemporary social justice challenges. The text takes an academic approach to issues such as the violence against women and children in war-torn regions, the ethical considerations of gender-affirming care for transgender individuals, and the societal consequences of institutional racism. Social Justice in the 21st Century is ideal for courses in social justice, ethics, and related fields within the social sciences. It provides students with a clear understanding of the intricacies of social justice issues and prepares them to engage with our contemporary challenges critically and thoughtfully.