Public administration operates at the intersection of power, policy, and citizen welfare, making ethical governance essential. Administrative ethics addresses the moral responsibilities of public officials, the principles guiding organizations, and mechanisms for realizing the public interest. Beyond individual behavior, ethics encompasses structural, procedural, and cultural dimensions, promoting legitimacy, trust, equity, and efficiency. This book explores philosophical foundations, including deontology, utilitarianism, virtue, rights-based, care, and justice-centered ethics, linking theory to public administration. It examines core principles - accountability, integrity, transparency, fairness - and their operationalization in leadership, personnel management, policy-making, and service delivery. Case studies highlight successes and failures, illustrating systemic impacts of ethical or unethical governance. Emphasizing capacity building, ethical leadership, citizen engagement, and adaptive strategies, the text provides a comprehensive roadmap for fostering integrity, public trust, and effective governance in contemporary, complex administrative contexts.