This book chapter offers a multidimensional analysis of the “Dark Triad” personality traits—narcissism, Machiavellianism, and psychopathy—which have gained increasing attention in the field of organizational behavior. The Dark Triad represents a cluster of socially aversive personality traits that directly affect critical organizational processes such as leadership, cooperation, decision-making, communication, and ethical conduct. Narcissism is characterized by an inflated sense of self-worth, a strong need for admiration, and a lack of empathy. Machiavellianism reflects manipulative behavior, strategic deceit, and a focus on personal gain. Psychopathy, in turn, is associated with a lack of conscience, irresponsibility, and impulsive-aggressive tendencies.

Each of these traits is examined in detail within the framework of relevant theoretical foundations and empirical findings. Their impacts on organizational structure, employee relations, leader-subordinate dynamics, and workplace climate are thoroughly explored. The chapter also addresses the prevalence of these traits in organizational settings, methods of identification, and their implications for performance management and corporate ethical culture. The study highlights the destructive potential of the Dark Triad traits on organizational performance, especially when individuals with such traits rise to leadership roles. It also presents strategies for managing these risks, including assessment tools during recruitment processes, leadership development programs, and the construction of an ethical workplace climate. In conclusion, this chapter underscores the necessity of recognizing, understanding, and managing Dark Triad traits to ensure organizational sustainability and employee well-being. It serves as a comprehensive and practical resource for both scholars and practitioners in the field.