This book offers an innovative interdisciplinary approach that elucidates the importance of virtue ethics to help better understand the role of leadership in international organisations. The authors use a combination of theoretical and conceptual narratives as well as case studies to highlight both the advantages and weaknesses that the angle of virtue ethics offers. A particularly important step in times of uncertainty or crisis when the demand for leadership becomes more urgent yet more daunting. In this sense, this volume oscillates between critique and hope, since it provides a plausible, rather than a purely abstract, approach to the conceptualization and concretization of ethical leadership.